Relay shielding case assembling mechanism

By using a specialized assembly mechanism in the assembly process of the magnetic latching relay, and utilizing a tensioning and two-stage lateral push structure, the problem of assembly failure caused by the narrow opening of the shielding cover was solved, thereby improving assembly efficiency and yield.

CN223638286UActive Publication Date: 2025-12-05XIAMEN HONGTIAN AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202423264789.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-05
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

When assembling the shield of an existing magnetic latching relay with the relay housing, the narrow opening can easily cause deformation, leading to assembly failure and affecting assembly efficiency and yield.

Method used

A relay shield assembly mechanism is adopted, which uses a first transverse drive component and a second transverse drive component to expand the opening of the shield by stretching the end, and uses a two-stage transverse push structure to accurately push the relay workpiece, ensuring the stability and accuracy of the assembly.

Benefits of technology

This effectively avoids assembly failures caused by excessively narrow shielding openings, improves assembly efficiency and yield, and enables efficient and stable assembly of relays and shielding covers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of relay processing, in particular to a relay shielding case assembling mechanism which comprises a support, a guide seat is arranged in the middle of the support, a tool seat is arranged at the top of the guide seat, and a tool groove used for containing a shielding case workpiece and a relay workpiece is formed in the top of the tool seat. Ejector rods are arranged on the support and located on the left side and the right side of the tool base, and a first transverse movement driving assembly is arranged between the ejector rods and the support and can drive the ejector rods to transversely move left and right. And a second transverse movement driving assembly is arranged on the guide seat. The utility model is beneficial for solving the problem of assembly failure caused by further deformation of the opening end due to stamping of a relay and blockage of the opening due to the fact that a reasonable press-in guide structure is not configured when some shielding cases and a relay shell are assembled at present.
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Description

TECHNICAL FIELD

[0001] The utility model relates to relay processing technical field, especially a relay shield cover assembly mechanism. BACKGROUND

[0002] The magnetic latching relay is a new type of relay, and has the same effect as other electromagnetic relays on automatically connecting and cutting off a circuit. The normally closed or normally open state of the magnetic latching relay completely depends on the action of a permanent magnet, and the switching state of the magnetic latching relay is triggered by a pulse electric signal of a certain width. At present, the electromagnetic system of the magnetic latching relay generally comprises a coil, a core, a yoke, and an armature, wherein the coil, the core, and the yoke are assembled together by riveting. However, the riveting process is complicated, which affects the assembly efficiency of the magnetic latching relay, and the core and the yoke are riveted together, which affects the accuracy of the installation of the parts, and further reduces the stability of the action of the magnetic relay.

[0003] When the magnetic latching relay is used in an environment with strong interference magnetic field, a shield cover needs to be added to the shell of the magnetic latching relay. The shield cover can prevent the interference magnetic field from causing the magnetic latching relay to malfunction, thereby reducing the stability of the operation of the magnetic latching relay. Most of the existing shield covers have a U-shaped shell structure, and the installation structure is a protrusion or a recess provided on the relay shell and matched with a hole or a protrusion provided on the shield cover. When the two are installed, the opening of the shield cover is generally fixed upward by a tooling, and then the relay is pressed into the shield cover from the top by a stamping mechanism. During the pressing process, the relay shell forcibly extrudes and expands the shield cover. In this process, the opening end of the shield cover is easily further deformed due to the too narrow opening of the shield cover, the opening is blocked, the assembly fails, and the shield cover is scrapped. SUMMARY

[0004] The utility model provides a kind of relay shield cover assembly mechanism, it is favorable to solve the problem that some shield cover and relay shell are not configured reasonable pressure into guide structure when being assembled, opening end is easily further deformed due to the too narrow opening of the shield cover, the opening is blocked, leading to assembly failure.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a relay shield cover assembly mechanism, including support, the middle part of support is equipped with guide seat, the top of guide seat is equipped with tool seat, the top of tool seat is equipped with the tool groove for accommodating shield cover work piece and relay work piece, and the tool groove is the strip slot hole of front and back orientation, shield cover work piece is U type structure, after the shield cover work piece is put into the tool groove, and its installation opening is towards the side of relay work piece, and the left and right sides are open structure, and the left and right sides of support are equipped with the top rod in tool seat, and the first horizontal shift drive assembly is equipped between top rod and support, first horizontal shift drive assembly can drive top rod left and right horizontal shift activity, and the side for side insertion shield cover work piece is equipped with the support end of the straining of top rod close to tool groove, the second horizontal shift drive assembly is equipped on guide seat, and the second horizontal shift drive assembly includes the push block in tool groove, and the transverse outside end of push block is equipped with horizontal push cylinder, and the bottom of tool groove is equipped with the jacking cylinder of adapting push block, horizontal push cylinder can drive push block with relay work piece and push the threshold distance to the side of shield cover work piece, and jacking cylinder can continue to drive relay work piece with push block and push to the side of shield cover to the second horizontal shift drive assembly of two -stage horizontal push structure.

[0007] On the basis of the above technical scheme, the first horizontal shift drive assembly includes a first cylinder fixedly connected to the support, a telescopic rod of the first cylinder horizontally oriented forward and backward, a pull block connected to the end of the telescopic rod, a mounting seat connected to the pull block, a second cylinder connected to the mounting seat, an output end of the second cylinder in transmission connection with the top rod, the second cylinder capable of driving the top rod to move horizontally in the left and right directions, the first cylinder capable of driving the pull block, the mounting seat, the second cylinder, and the top rod to move forward and backward, and the first horizontal shift drive assemblies on the left and right sides being symmetrically arranged.

[0008] On the basis of the above technical scheme, the top rod is oriented left and right, a first abutting end is arranged on the side away from the work station groove, a first wedge-shaped block adapted to the first abutting end is arranged on the output end of the second cylinder, a first guide groove oriented forward and backward is arranged inside the mounting seat, the second cylinder drives the first wedge-shaped block to slide along the first guide groove to control the top rod to slide towards the work station groove, a tension spring is arranged between the top rod and the mounting seat, and the extension direction of the tension spring is parallel to the left and right directions.

[0009] On the basis of the above technical scheme, a positioning rod is arranged on the top rod on one side, and the positioning rod can be arranged above the work station groove to form an upper limiting structure of the shield cover work piece.

[0010] On the basis of the above technical scheme, the longitudinal profile of the push block is in an "L" type structure, a second abutting end is arranged on the bottom of the push block, a second guide groove oriented longitudinally is arranged inside the guide seat, the top of the second guide groove is in communication with the tool groove, a second wedge-shaped block adapted to the second abutting end is connected to the extension end of the jacking cylinder, the jacking cylinder drives the second wedge-shaped block to move upwards to drive the push block to slide towards the side of the shield cover work piece, a second tension spring is arranged between the push block and the guide seat, and the extension direction of the second tension spring is parallel to the forward and backward directions.

[0011] On the basis of the above technical scheme, the telescopic rod of the horizontal pushing cylinder is connected with a push rod, and the push rod is located on the side of the push block away from the shield cover workpiece.

[0012] On the basis of the above technical scheme, the push block is provided with second tension springs that are symmetric to each other.

[0013] On the basis of the above technical scheme, the second abutting end is provided with two inclined end faces that are distributed at intervals left and right, a flat end face is arranged between the two inclined end faces for abutting against the push rod, the top of the second wedge-shaped block is provided with two protrusions that are distributed at intervals left and right, the top of the protrusion is provided with an inclined end face, and the top profile of the second wedge-shaped block is adapted to the bottom profile of the second abutting end.

[0014] Compared with the prior art, the utility model at least has the following advantages:

[0015] The utility model discloses a relay shield cover assembling mechanism, which comprises a first horizontal moving driving assembly, a second horizontal moving driving assembly, a push block, a shield cover workpiece and a push rod. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0017] Figure 1 It is a perspective structural schematic view of a relay shield cover assembling mechanism in an embodiment.

[0018] Figure 2 It is a perspective structural schematic view of a relay shield cover assembling mechanism in an embodiment. Figure 1 It is a top view of the relay shield cover assembling mechanism.

[0019] Figure 3 It is a partial cross-sectional view of the first horizontal moving driving assembly in the relay shield cover assembling mechanism. Figure 1 It is a partial cross-sectional view of the first horizontal moving driving assembly in the relay shield cover assembling mechanism.

[0020] Figure 4 It is a partial cross-sectional view of the first horizontal moving driving assembly in the relay shield cover assembling mechanism. Figure 1a longitudinal sectional view in the direction of the arrow A in figure 1,

[0021] Figure 5 for Figure 4 a perspective view of the second wedge and the second guide groove in figure 2;

[0022] Figure 6 for Figure 5 a partial enlarged view of A in figure 2.

[0023] Figure: 100, support; 110, first cylinder; 200, pull block; 210, mounting seat; 211, first guide groove; 212, first wedge; 220, slide rail assembly; 230, second cylinder; 300, top rod; 301, first butt joint end; 310, tension end head; 400, first reset pull rod; 500, positioning rod; 600, guide seat; 601, second guide groove; 610, third cylinder; 620, second wedge; 630, fourth cylinder; 631, push rod; 640, push block; 641, baffle; 642, second butt joint end; 643, reset jack; 700, tooling seat; 710, tooling groove; 720, movable groove; 800, second reset pull rod; a1, shield workpiece; a2, relay workpiece. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0025] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "including", and "having", are inclusive and therefore specify certain embodiments, but do not preclude other embodiments.

[0027] The utility model will be explained further in detail below in combination with the drawings and specific embodiments.

[0028] In combination Figures 1-6 The embodiment discloses a relay shield cover assembling mechanism, and aims to provide a mechanism capable of efficiently and stably completing the assembling process of a relay and a shield cover.

[0029] The relay shield cover assembling mechanism specifically comprises a support 100, the support 100 is composed of two frame bodies which are distributed at intervals leftward and rightward, and the support 100 mainly plays a bearing support role, and the bottom of the support 100 is also used for being connected and installed with external mechanisms.

[0030] A guide seat 600 is arranged in the middle of the support 100, a tool seat 700 is connected to the top of the guide seat 600, and the left and right sides of the tool seat 700 are fixedly connected with the support 100. A tool groove 710 for accommodating a shield cover workpiece a1 and a relay workpiece a2 is arranged at the top of the tool seat 700, the tool groove 710 is a strip-shaped groove hole facing forward and backward, and the shield cover workpiece a1 and the relay workpiece a2 are fed out by external transfer devices during work. It should be noted that the shield cover workpiece a1 is of a U-shaped structure, after the shield cover workpiece a1 is placed into the tool groove 710, the mounting opening thereof faces the side of the relay workpiece a2, and the left and right sides thereof are open structures, and the open structures are exposed on the left and right sides of the work position groove.

[0031] A top rod 300 is arranged on the left and right sides of the tool seat 700, the top rod 300 is a rod body structure arranged horizontally and leftward and rightward, a first horizontal movement driving assembly is arranged between the top rod 300 and the support 100, the first horizontal movement driving assembly can drive the top rod 300 to move horizontally, and a reverse T-shaped supporting end head 310 for being inserted into the shield cover workpiece a1 from the side is arranged on the side of the top rod 300 close to the tool groove 710. After the supporting end head 310 is inserted into the side opening of the shield cover workpiece a1, the structure on the upper and lower sides of the shield cover workpiece a1 can be expanded outward, so that the mounting opening contour of the shield cover workpiece a1 is expanded and kept stable, which is beneficial to greatly improving the assembly success rate.

[0032] Specifically, the first horizontal movement driving assembly comprises a first cylinder 110 fixedly connected to the support 100, a telescopic rod of the first cylinder 110 horizontally faces forward and backward, and a pull block 200 is connected to the end of the telescopic rod, the pull block 200 is connected with a mounting seat 210, the mounting seat 210 is horizontally arranged and serves as a mounting carrier of other components. A forward and backward facing slide rail assembly 220 is further arranged between the mounting seat 210 and the support 100, so that the forward and backward sliding is more stable and reliable.

[0033] The second cylinder 230 is connected to the mounting seat 210, the forward and backward facing output end of the second cylinder 230 is in transmission connection with the jacking rod 300, the second cylinder 230 can drive the jacking rod 300 to move horizontally in the left and right directions, the first cylinder 110 can drive the pull block 200, the mounting seat 210, the second cylinder 230 and the jacking rod 300 to displace forward and backward, and the first horizontal movement driving assemblies on the left and right sides are symmetrically arranged. The first cylinder 110 serves to control the jacking rod 300 relative to the structure of the work station groove during the feeding and discharging, so that the external clamping structure has sufficient space to clamp the workpiece.

[0034] Further, in combination with Figure 3 , the jacking rod 300 faces left and right, and a first abutting end 301 is arranged on the side away from the work station groove, the output end of the second cylinder 230 is provided with a first wedge-shaped block 212 matched with the first abutting end 301, corresponding inclined end faces are arranged on the adjacent sides of the first abutting end 301 and the first wedge-shaped block 212, a first guide groove 211 facing forward and backward is arranged in the mounting seat 210, the second cylinder 230 drives the first wedge-shaped block 212 to slide along the first guide groove 211, so as to control the jacking rod 300 to slide towards the work station groove, a tension spring is arranged between the jacking rod 300 and the mounting seat 210, the extension direction of the tension spring is parallel to the left and right directions, in combination with Figure 1 and Figure 2 , the tension spring is installed by means of a first reset pull rod 400, the first reset pull rod 400 comprises screw rod structures arranged on the top of the mounting seat 210 and the jacking rod 300 respectively, the tension spring is not shown in the figure, actually, the two ends of the tension spring are hooked between the two screw rods, and the tension spring is used to pull the jacking rod 300 back to the original position after the first wedge-shaped block 212 is reset.

[0035] In order to effectively control the deformation of the shielding cover workpiece a1 when the jacking rod 300 supports and stretches the shielding cover workpiece a1, and also in order to prevent the shielding cover from falling off the work station groove 710, a positioning rod 500 is arranged on one side (the right side in the embodiment) of the jacking rod 300, the positioning rod 500 horizontally faces left and right, and the positioning rod 500 can be arranged above the work station groove to form an upper limiting structure of the shielding cover workpiece a1.

[0036] The guide seat 600 is provided with a second transverse movement driving assembly, the second transverse movement driving assembly comprises a push block 640 arranged in the tool groove 710, the push block 640 is provided with a transverse push cylinder at the transverse outer side end, the bottom of the tool groove 710 is provided with a jacking cylinder matched with the push block 640, the transverse push cylinder can drive the push block 640 to drive the relay workpiece a2 to be pushed to the side of the shield cover workpiece a1 by a threshold distance, and the jacking cylinder can continue to drive the relay workpiece a2 to be transversely moved to the side of the shield cover by using the wedge block and the push block 640, thereby forming a two-stage transverse push structure of the second transverse movement driving assembly. In the embodiment, the two-stage transverse push structure formed by the second transverse movement driving assembly is used, the first-stage transverse push is used for accurately pushing one end of the relay workpiece a2 into the opening of the shield cover workpiece a1, then the stretching end head 310 of the jack 300 can be moved outward and reset, and the second-stage transverse push is used for stably and reliably pushing the relay workpiece a2 to the position, so that the relay workpiece a2 is accurately pushed, and the assembly failure problem caused by the too narrow opening of the shield cover is avoided, and the assembly efficiency and the yield are improved.

[0037] Specifically, in combination with Figures 4-6 , the longitudinal profile of the push block 640 is in an “L” type structure, the vertical section is a baffle 641, the baffle 641 is used for abutting against the outer side end of the relay workpiece a2 in the front-rear direction, so that the stop block can provide stable transverse pushing force for the relay workpiece a2 during transverse movement, the bottom of the baffle 641 is provided with a second butt joint end 642, the inside of the guide seat 600 is provided with a second longitudinal guide groove 601, the top of the second longitudinal guide groove 601 is communicated with the tool groove 710, the bottom of the tool groove 710 is provided with a movable groove 720 for transverse movement of the push block 640, the jacking cylinder is specifically a third cylinder 610, the third cylinder 610 is connected with a second wedge block 620 matched with the second butt joint end 642 at the extension end, the upward movement of the third cylinder 610 drives the second wedge block 620 to drive the push block 640 to slide to the side of the shield cover workpiece a1, the second tension spring is arranged between the push block 640 and the guide seat 600, the extension direction of the second tension spring is parallel to the front-rear direction, the second tension spring is realized by means of a second reset tension rod 800, the number of the second reset tension rod 800 is two, one of which is connected to the side wall of the stop block, and the other is fixed to the guide seat 600, the push block 640 is provided with reset insertion holes 643 symmetrically arranged on the left and right sides, which are used for mounting the reset tension spring. Further, the second butt joint end 642 is provided with two inclined end faces distributed on the left and right sides, a flat end face is arranged between the two inclined end faces for abutting against the push rod 631, the top of the second wedge block 620 is provided with two protrusions distributed on the left and right sides, the top of the protrusion is provided with an inclined end face, and the top profile of the second wedge block 620 is matched with the bottom profile of the second butt joint end 642.

[0038] In the embodiment, the horizontal pushing cylinder is specifically the fourth cylinder 630, the telescopic rod of the fourth cylinder 630 is connected with a pushing rod 631, and the pushing rod 631 is located at the side, away from the shielding cover workpiece a1, of the pushing block 640. Due to the unique structure design of the second joint end 642, after the fourth cylinder 630 drives the pushing rod 631 to push the pushing block 640 to move, the second wedge-shaped block 620 can be allowed to contact the inclined end face of the second joint end 642 after moving on the threshold position while keeping the pushing rod 631 and the pushing block 640 still in contact, and the "seamless connection" in the horizontal pushing driving process is completed.

[0039] In the specific implementation process, the shielding cover workpiece a1 and the relay workpiece a2 are placed into the front and rear ends in the tool groove 710 by using the external transfer device, the stretching end head 310 of the jacking rod 300 is inserted into the shielding cover workpiece a1 from the side before installation by using the first horizontal moving driving assembly, the opening structure of the shielding cover is effectively expanded, more beneficial structural conditions are provided for installation and insertion, the effective expansion of the opening of the shielding cover workpiece a1 is realized, the two-section horizontal pushing structure composed of the second horizontal moving driving assembly is used again, the first horizontal pushing is used for accurately pushing one end of the relay workpiece a2 into the opening of the shielding cover workpiece a1, then the stretching end head 310 of the jacking rod 300 can be moved out and reset, the second horizontal pushing is used for stably and reliably pushing the relay workpiece a2 to the position, the accurate pushing of the relay workpiece a2 is realized, the assembly failure problem caused by the too narrow opening of the shielding cover is effectively avoided, and the assembly efficiency and the yield are improved.

[0040] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A relay shield assembly mechanism characterized by, The application relates to a supporting frame (100) which is provided with a guide seat (600) in the middle, the top of the guide seat (600) is provided with a tool seat (700), the top of the tool seat (700) is provided with a tool groove (710) for accommodating a shield workpiece (a1) and a relay workpiece (a2), the tool groove (710) is a front-rear oriented strip-shaped slot hole, the shield workpiece (a1) is in a U-shaped structure, after the shield workpiece (a1) is placed into the tool groove (710), the mounting opening of the shield workpiece (a1) faces the side of the relay workpiece (a2), and the left and right sides are open structures; the supporting frame (100) is provided with a top rod (300) on the left and right sides of the tool seat (700), a first horizontal movement driving assembly is arranged between the top rod (300) and the supporting frame (100), the first horizontal movement driving assembly can drive the top rod (300) to horizontally move, and the side of the top rod (300) close to the tool groove (710) is provided with a stretching end (310) for being inserted into the shield workpiece (a1) from the side; the guide seat (600) is provided with a second horizontal movement driving assembly, the second horizontal movement driving assembly comprises a push block (640) arranged in the tool groove (710), the transversely outer end of the push block (640) is provided with a horizontal push cylinder, the bottom of the tool groove (710) is provided with a jack-up cylinder matched with the push block (640), the horizontal push cylinder can drive the push block (640) and the relay workpiece (a2) to horizontally push a threshold distance towards the side of the shield workpiece (a1), and the jack-up cylinder can continue to drive the relay workpiece (a2) to horizontally move to a position on the side of the shield by means of a wedge block and the push block (640), thereby forming a two-section horizontal push structure of the second horizontal movement driving assembly.

2. A relay shield assembly mechanism according to claim 1, wherein The first horizontal movement driving assembly comprises a first cylinder (110) fixedly connected to the supporting frame (100), the telescopic rod of the first cylinder (110) horizontally faces forward and backward, and the telescopic rod is connected with a pulling block (200) at the tail end, the pulling block (200) is connected with a mounting seat (210), the mounting seat (210) is connected with a second cylinder (230), the output end of the second cylinder (230) is in transmission connection with the top rod (300), the second cylinder (230) can drive the top rod (300) to horizontally move, the first cylinder (110) can drive the pulling block (200), the mounting seat (210), the second cylinder (230) and the top rod (300) to displace forward and backward, and the first horizontal movement driving assemblies on the left and right sides are symmetrically arranged.

3. A relay shield assembly mechanism according to claim 2, wherein The top rod (300) horizontally faces left and right, the side away from the work station groove is provided with a first butt joint end (301), the output end of the second cylinder (230) is provided with a first wedge block (212) matched with the first butt joint end (301), the inside of the mounting seat (210) is provided with a first guide groove (211) horizontally facing forward and backward, the second cylinder (230) drives the first wedge block (212) to slide along the first guide groove (211), so as to control the top rod (300) to slide towards the work station groove, and a tension spring is arranged between the top rod (300) and the mounting seat (210), and the extension direction of the tension spring is parallel to the left-right direction.

4. The relay shield can assembly mechanism according to claim 3, wherein The positioning rod (500) is arranged on the top rod (300) on one side, and can be arranged above the work station groove to form an upper limiting structure of the shielding cover workpiece (a1).

5. The relay shield can assembly mechanism according to claim 1, wherein The longitudinal section profile of the push block (640) is in an "L" type structure, the bottom of the push block (640) is provided with a second butt joint end (642), the inside of the guide seat (600) is provided with a longitudinal second guide groove (601), the top of the second guide groove (601) is communicated with the tool groove (710), the telescopic end of the jacking cylinder is connected with a second wedge block (620) matched with the second butt joint end (642), the jacking cylinder drives the second wedge block (620) to move upwards, which can drive the push block (640) to slide towards the shielding cover workpiece (a1) side, and the second tension spring is arranged between the push block (640) and the guide seat (600), and the telescopic direction of the second tension spring is parallel to the front and back directions.

6. A relay shield assembly mechanism according to claim 5, wherein The telescopic rod of the horizontal push cylinder is connected with a push rod (631), and the push rod (631) is located on the side of the push block (640) away from the shielding cover workpiece (a1).

7. A relay shield assembly mechanism according to claim 5, wherein The push block (640) is provided with a second tension spring symmetrically arranged on the left and right sides.

8. The relay shield can assembly mechanism according to claim 6, wherein The second butt joint end (642) is provided with two inclined end faces distributed on the left and right sides, a flat end face for abutting the push rod (631) is arranged between the two inclined end faces, the top of the second wedge block (620) is provided with two protrusions distributed on the left and right sides, the top of the protrusion is provided with an inclined end face, and the top profile of the second wedge block (620) is matched with the bottom profile of the second butt joint end (642).