Press fitting device for elastic sheet type wiring terminal strip

By designing a pressing device for spring-loaded terminal blocks, and utilizing a combination of threaded rods and hydraulic structures, the problems of inaccurate pressing force and poor stability in existing technologies have been solved, achieving precise pressing and improved stability.

CN120955432APending Publication Date: 2025-11-14NAN TONG HUAGUAN ELECTRIC CO LTD
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Patent Information

Application Number
CN202511091294.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing terminal block crimping equipment suffers from inaccurate crimping force due to metal fatigue, resulting in crimping depth failure and poor machine stability, leading to substandard products.

Method used

Design a spring-loaded terminal block press-fitting device that includes a press-fitting structure, a support structure, and a hydraulic structure. Through the combination of a first threaded rod, a hydraulic column, a rotating disc, and a hydraulic press, precise press-fitting and improved stability are achieved.

Benefits of technology

It achieves precise pressing of spring-loaded terminal blocks, avoiding problems such as inaccurate pressing depth and poor machine stability caused by metal fatigue, and improving product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of press fitting of terminal blocks, in particular to a press fitting device of an elastic piece type terminal block, which comprises a press fitting structure, a supporting structure and a hydraulic structure, a first threaded rod is movably connected in a first supporting plate in the press fitting structure, and the lower end of the first threaded rod is connected with a driver through a coupler; one side of the driving machine is connected with a first rotating disc through a first hinge, the upper ends of the first rotating disc, a second rotating disc and a third rotating disc are connected with a second threaded rod through bolts, a pressing plate can be pressed by a hydraulic machine, so that a hydraulic rod can be pressed up and down, and the upper end of the hydraulic rod can be limited through a hydraulic groove; the hydraulic rod can be movably connected into the hydraulic cylinder, the two sides of a second supporting plate can be supported through a third supporting plate and a second supporting column, the lower end of a fourth supporting plate can be supported through a fourth supporting column, and the fourth supporting plate can be connected with a hydraulic machine so that the hydraulic machine can conduct hydraulic pressing on a pressing plate.
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Description

Technical Field

[0001] This invention relates to the field of terminal block press-fitting technology, specifically to a press-fitting device for spring-loaded terminal blocks. Background Technology

[0002] Terminal blocks are electrical connection products used for quick and easy connection and securing of wires. They typically consist of a series of insulated bases and metal terminals and can be installed inside or outside electrical equipment. The function of terminal blocks is to provide a safe, reliable, and centralized connection point, allowing multiple circuit lines to be easily connected into a unified circuit system. They also serve functions such as circuit isolation, leakage prevention, and maintaining circuit stability.

[0003] However, when existing terminal blocks are press-fitted, the pressing equipment suffers from metal fatigue due to repeated pressing, which causes problems with the pressing force. As a result, the accuracy of the pressing depth may be compromised, leading to some substandard products. Furthermore, the machine's pressure accuracy may become unstable due to repeated operation.

[0004] Therefore, in order to solve the above problems, a press-fitting device for spring-loaded terminal blocks is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a pressing device for spring-loaded terminal blocks, in order to solve the problems mentioned in the background art, where pressing devices in the prior art suffer from metal fatigue due to repeated pressing, resulting in problems with pressing force and thus loss of precision in pressing depth. This leads to the production of substandard products and the instability of pressure precision in some machines due to repeated operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressing device for a spring-loaded terminal block, comprising: a pressing structure, a support structure, and a hydraulic structure. In the pressing structure, a first threaded rod is movably connected to a first support plate. The lower end of the first threaded rod is connected to a drive motor via a coupling. A first rotating disk is connected to one side of the drive motor via a first hinge. A second threaded rod is bolted to the upper ends of the first, second, and third rotating disks. The upper ends of the second and first threaded rods are movably connected to the lower end of a second support plate in the hydraulic structure. A reset structure is bolted to the upper end of the second support plate. A limiting rod is bolted to the interior of the reset structure. The outer side of the limiting rod is movably connected to a connecting plate. A pressure plate is bolted to the upper end of the connecting plate. A hydraulic column is bolted to the lower end of the connecting plate in the hydraulic structure. A second base in the support structure is bolted to the upper end of the first support plate in the pressing structure.

[0007] Preferably, in the press-fit structure, the upper end of the first base is bolted to the table body, the upper end of the table body is equipped with a press-fit groove, the upper end of the table body is bolted to the first support column, the upper end of the first support column is bolted to the first support plate, the interior of the first support plate is hollowed out to form a first threaded hole, and the interior of the first threaded hole is movably connected to a first threaded rod and a second threaded rod.

[0008] Preferably, a hydraulic column is installed inside the first support plate, the lower end of the hydraulic column is bolted to a hydraulic plate, the lower end of the first support plate is bolted to a telescopic rod, the lower end of the telescopic rod is bolted to a drive motor, and the upper end of the drive motor is connected to the lower end of the first threaded rod by a coupling.

[0009] Preferably, the outer side of the drive motor is movably connected to the outer side of the first rotating disk by a first hinge, the outer side of the first rotating disk is movably connected to the outer side of the second rotating disk by a second hinge, the outer side of the second rotating disk is movably connected to the outer side of the third rotating disk by a third hinge, and the upper ends of the first rotating disk, the second rotating disk, and the third rotating disk are bolted to a second threaded rod.

[0010] Preferably, a third threaded rod is welded to the upper end of the second base in the support structure, and the upper end of the third threaded rod is movably connected in the threaded groove.

[0011] Preferably, the third threaded rod is used to lock the first support ring and the second support ring on the outside, the first support ring is welded to both sides with a first connecting ring, and the second support ring is welded to both sides with a second connecting ring.

[0012] Preferably, the upper end of the second support plate in the hydraulic structure is bolted to a reset structure, the lower end of the second support plate is held in place by a threaded groove, and a limit rod is bolted to the inside of the reset structure. The outer side of the limit rod is movably connected to the inside of the connecting plate.

[0013] Preferably, the upper end of the connecting plate is bolted to a pressure plate, the lower end of the connecting plate is bolted to a hydraulic column, and the lower end of the hydraulic column is movably connected within a hydraulic groove.

[0014] Preferably, the second support plate is bolted to both sides of the third support plate, the lower end of the third support plate is bolted to the second support column, the upper end of the pressure plate is bolted to the third support column, the upper end of the third support column is bolted to the fourth support plate, and the upper end of the fourth support plate is bolted to the hydraulic press.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention comprises a first base, a table body, a pressing groove, a first support column, a first support plate, a first threaded hole, a hydraulic column, a hydraulic plate, a first threaded rod, a telescopic rod, a drive motor, a first hinge, a first rotating disk, a second hinge, a second rotating disk, a third hinge, a third rotating disk, a second threaded rod, a second base, a third threaded rod, a threaded groove, a first support ring, a first connecting ring, a second support ring, and a second connecting ring. The pressing groove allows for the molding of the spring-loaded terminal block; the first support column supports the first support plate; the first threaded hole rotatably connects the first and second threaded rods; the hydraulic column hydraulically powers the hydraulic plate; the hydraulic plate presses the spring-loaded terminal block; and the first and second threaded rods drive the second support plate forward. The hydraulic press moves up and down, and the telescopic rod can limit the movement of the drive motor, allowing it to move up and down together with the first and second threaded rods when they rotate. The first, second, and fourth hinges can rotate the first, second, and fourth rotating disks, which in turn drive the first threaded rod to move up and down. The second base supports the fourth threaded rod. The third threaded rod can connect to the threaded groove, and the first and second support rings support the threaded groove, preventing damage to the third threaded rod during hydraulic operation. The first and second connecting rings allow the connecting bolts to rotate, connecting the first and second support rings.

[0017] 2. This invention comprises a second support plate, a reset structure, a limiting rod, a connecting plate, a pressure plate, a hydraulic groove, a third support plate, a second support column, a third support column, a fourth support plate, and a hydraulic press. The second support plate limits the upper end of the hydraulic column. A threaded groove connected to the lower end of the second support plate allows the height of the second support plate to be adjusted using a threaded rod, preventing defective products from being produced due to pressure variations during operation. The reset structure allows the hydraulic column to reset after hydraulic pressure is applied. The limiting rod limits the outer side of the connecting plate, allowing it to connect to the upper end of the hydraulic column. The pressure plate can be pressed by the hydraulic press, allowing the hydraulic rod to move up and down. The hydraulic groove limits the upper end of the hydraulic rod, allowing it to be movably connected within it. The third support plate and the second support column support both sides of the second support plate. The fourth support column supports the lower end of the fourth support plate. The fourth support plate connects to the hydraulic press, enabling the press to apply hydraulic pressure to the pressure plate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional schematic diagram of the hydraulic structure of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the press-fitting structure of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the support structure of the present invention;

[0022] Figure 5 This is a partial three-dimensional structural schematic diagram of the press-fitting structure of the present invention;

[0023] Figure 6 This is a partial three-dimensional structural schematic diagram of the press-fitting structure of the present invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the press-fitting structure of the present invention.

[0025] In the diagram: 1. Press-fit structure; 101. First base; 102. Table body; 103. Press-fit groove; 104. First support column; 105. First support plate; 106. First threaded hole; 107. Hydraulic column; 108. Hydraulic plate; 109. First threaded rod; 110. Telescopic rod; 111. Drive motor; 112. First hinge; 113. First rotating disk; 114. Second hinge; 115. Second rotating disk; 116. Third hinge; 117. Third rotating disk; 118. Second threaded rod; 2. Support Support structure; 201, second base; 202, third threaded rod; 203, threaded groove; 204, first support ring; 205, first connecting ring; 206, second support ring; 207, second connecting ring; 3, hydraulic structure; 301, second support plate; 302, reset structure; 303, limit rod; 304, connecting plate; 305, pressure plate; 306, hydraulic groove; 307, third support plate; 308, second support column; 309, third support column; 310, fourth support plate; 311, hydraulic press. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0027] Please see Figure 1-7 One embodiment provided by the present invention:

[0028] A pressing device for a spring-loaded terminal block includes: a pressing structure 1, a support structure 2, and a hydraulic structure 3. A first threaded rod 109 is movably connected inside a first support plate 105 in the pressing structure 1. The lower end of the first threaded rod 109 is connected to a drive motor 111 via a coupling. A first rotating disk 113 is connected to one side of the drive motor 111 via a first hinge 112. A second threaded rod 118 is bolted to the upper ends of the first rotating disk 113, the second rotating disk 115, and the third rotating disk 117. The second threaded rod 118 is connected to the first threaded rod... The upper end of 109 is movably connected to the lower end of the second support plate 301 in the hydraulic structure 3. The upper end of the second support plate 301 is bolted to the reset structure 302. The inside of the reset structure 302 is bolted to the limit rod 303. The outer side of the limit rod 303 is movably connected to the connecting plate 304. The upper end of the connecting plate 304 is bolted to the pressure plate 305. The lower end of the connecting plate 304 in the hydraulic structure 3 is bolted to the hydraulic column 107. The upper end of the first support plate 105 in the press-fitting structure 1 is bolted to the second base 201 in the support structure 2.

[0029] Furthermore, in the press-fit structure 1, the upper end of the first base 101 is bolted to the table body 102, the upper end of the table body 102 is equipped with a press-fit groove 103, the upper end of the table body 102 is bolted to the first support column 104, the upper end of the first support column 104 is bolted to the first support plate 105, the first support plate 105 is hollowed out to form a first threaded hole 106, the first threaded hole 106 is movably connected to the first threaded rod 109 and the second threaded rod 118, the press-fit groove 103 is used to apply plastic film to the spring-type terminal block, the first support column 104 is used to support the first support plate 105, and the first threaded hole 106 is used to rotatably connect the first threaded rod 109 and the second threaded rod 118.

[0030] Furthermore, a hydraulic column 107 is installed inside the first support plate 105. The lower end of the hydraulic column 107 is bolted to a hydraulic plate 108. The lower end of the first support plate 105 is bolted to a telescopic rod 110. The lower end of the telescopic rod 110 is bolted to a drive motor 111. The upper end of the drive motor 111 is connected to the lower end of the first threaded rod 109 via a coupling. The hydraulic column 107 is used to hydraulically press the hydraulic plate 108. The hydraulic plate 108 is used to press the spring-loaded terminal block. The first threaded rod 109 and the second threaded rod 118 are used to drive the second support plate 301 to move up and down. The telescopic rod 110 is used to limit the drive motor 111, so that when the drive motor 111 rotates the first threaded rod 109 and the second threaded rod 118, it can move up and down together with the first threaded rod 109 and the second threaded rod 118.

[0031] Furthermore, the outer side of the drive motor 111 is movably connected to the outer side of the first rotating disk 113 by a first hinge 112, the outer side of the first rotating disk 113 is movably connected to the second rotating disk 115 by a second hinge 114, and the outer side of the second rotating disk 115 is movably connected to the outer side of the third rotating disk 117 by a third hinge 116. The upper ends of the first rotating disk 113, the second rotating disk 115, and the third rotating disk 117 are bolted to the second threaded rod 118. The first hinge 112, the second hinge 114, and the fourth hinge 116 are used to rotate the first rotating disk 113, the second rotating disk 115, and the fourth rotating disk 117. The first rotating disk 113, the second rotating disk 115, and the fourth rotating disk 117 are used to drive the first threaded rod 109 to move up and down.

[0032] Furthermore, a third threaded rod 202 is welded to the upper end of the second base 201 in the support structure 2. The upper end of the third threaded rod 202 is movably connected in the threaded groove 203. The second base 201 is used to support the fourth threaded rod 202, and the third threaded rod 202 is used to connect with the threaded groove 203.

[0033] Furthermore, the outer side of the third threaded rod 202 is engaged with the first support ring 204 and the second support ring 206. The first support ring 204 is welded with a first connecting ring 205 on both sides, and the second support ring 206 is welded with a second connecting ring 207 on both sides. The first support ring 204 and the second support ring 206 are used to support the threaded groove 203 so that the third threaded rod 202 will not be easily damaged when the hydraulic press 311 is operating hydraulically. The first connecting ring 205 and the second connecting ring 207 are used to rotate the connecting bolt so that the first support ring 204 and the second support ring 206 can be connected.

[0034] Furthermore, the upper end of the second support plate 301 in the hydraulic structure 3 is bolted to the reset structure 302, and the lower end of the second support plate 301 is held in place by the threaded groove 203. The reset structure 302 is bolted to the inside of the limiting rod 303, and the outer side of the limiting rod 303 is movably connected to the inside of the connecting plate 304. The second support plate 301 is used to limit the upper end of the hydraulic column 107. The threaded groove 203 movably connected to the lower end of the second support plate 301 is used to allow the threaded groove 203 to adjust the height of the second support plate 301 with the threaded rod 202, so that the pressing device will not produce defective products due to pressure issues during operation. The reset structure 302 is used to allow the hydraulic column 107 to reset after hydraulic pressure is applied. The limiting rod 303 is used to limit the outer side of the connecting plate 304, so that the connecting plate 304 can be connected to the upper end of the hydraulic column 107.

[0035] Furthermore, the upper end of the connecting plate 304 is bolted to the pressure plate 305, and the lower end of the connecting plate 304 is bolted to the hydraulic rod 107. The lower end of the hydraulic rod 107 is movably connected in the hydraulic groove 306. The pressure plate 305 is used to be pressed by the hydraulic press 311, so that the hydraulic rod 107 can be pressed up and down. The hydraulic groove 306 is used to limit the upper end of the hydraulic rod 107, so that the hydraulic rod 107 can be movably connected therein.

[0036] Furthermore, the second support plate 301 is bolted to the two sides of the third support plate 307, the lower end of the third support plate 307 is bolted to the second support column 308, the upper end of the pressure plate 305 is bolted to the third support column 309, the upper end of the third support column 309 is bolted to the fourth support plate 310, and the upper end of the fourth support plate 310 is bolted to the hydraulic press 311. The third support plate 307 and the second support column 308 are used to support the two sides of the second support plate 301, the fourth support column 309 is used to support the lower end of the fourth support plate 310, and the fourth support plate 310 is used to connect with the hydraulic press 311 so that the hydraulic press 311 can hydraulically press the pressure plate 305.

[0037] Working principle: In use, the material is first placed in the pressing groove 103. Then, the drive motor 111 is started. As the drive motor 111 rotates, it drives the first threaded rod 109 and the first hinge 112 to rotate. The first hinge 112, in turn, drives the first rotating disk 113. The first rotating disk 113 then rotates the second rotating disk 115 via the second hinge 114. The second rotating disk 115, in turn, drives the third rotating disk 117 via the third hinge 116. Simultaneously, the rotation of the first rotating disk 113, the second rotating disk 115, and the third rotating disk 117 drives the second threaded rod 118 to rotate. The simultaneous rotation of the first threaded rod 109 and the second threaded rod 118 adjusts the second support plate 301 to the required height. Then, the threaded groove 203 is rotated, causing the threaded groove... 203 holds the lower end of the second support plate 301. Select suitable first support ring 204 and second support ring 206 and insert them on both sides of the third threaded rod 202 to support the second base 201 and the threaded groove 203. Use bolts to rotate and connect the first connecting ring 205 and the second connecting ring 207 to limit their movement. Start the hydraulic press 311 and press the pressure plate 305. When the pressure plate 305 presses down, it drives the hydraulic column 107 and the hydraulic plate 108 to work, so that the hydraulic plate 108 presses the material in the pressing groove 103. When the hydraulic press 311 resets, the reset 302 drives the connecting plate 304 to move upward. The connecting plate 304 then drives the hydraulic column 107 to move upward, so that the pressing can be repeated.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A pressing device for a spring-loaded terminal block, comprising: The press-fitting structure (1), support structure (2), and hydraulic structure (3) are characterized in that: a first threaded rod (109) is movably connected inside the first support plate (105) of the press-fitting structure (1); the lower end of the first threaded rod (109) is connected to the drive machine (111) by a coupling; a first rotating disk (113) is connected to one side of the drive machine (111) by a first hinge (112); the upper ends of the first rotating disk (113), the second rotating disk (115), and the third rotating disk (117) are bolted to a second threaded rod (118); and the second threaded rod (118) is movably connected to the upper end of the first threaded rod (109). The lower end of the second support plate (301) in the hydraulic structure (3) is connected to the lower end of the second support plate (301). The upper end of the second support plate (301) is connected to the reset structure (302) by bolts. The inner part of the reset structure (302) is connected to the limit rod (303) by bolts. The outer side of the limit rod (303) is movably connected to the connecting plate (304). The upper end of the connecting plate (304) is connected to the pressure plate (305) by bolts. The lower end of the connecting plate (304) in the hydraulic structure (3) is connected to the hydraulic column (107) by bolts. The upper end of the first support plate (105) in the press-fitting structure (1) is connected to the second base (201) in the support structure (2) by bolts.

2. The pressing device for a spring-loaded terminal block according to claim 1, characterized in that: The upper end of the first base (101) in the press-fit structure (1) is bolted to the table body (102). The upper end of the table body (102) is equipped with a press-fit groove (103). The upper end of the table body (102) is bolted to the first support column (104). The upper end of the first support column (104) is bolted to the first support plate (105). The first support plate (105) is hollowed out to form a first threaded hole (106). The first threaded hole (106) is movably connected to the first threaded rod (109) and the second threaded rod (118).

3. The pressing device for a spring-loaded terminal block according to claim 2, characterized in that: The first support plate (105) is equipped with a hydraulic column (107). The lower end of the hydraulic column (107) is bolted to a hydraulic plate (108). The lower end of the first support plate (105) is bolted to a telescopic rod (110). The lower end of the telescopic rod (110) is bolted to a drive motor (111). The upper end of the drive motor (111) is connected to the lower end of the first threaded rod (109) by a coupling.

4. The pressing device for a spring-loaded terminal block according to claim 3, characterized in that: The drive motor (111) is movably connected to the outer side of the first rotating disk (113) by a first hinge (112), the outer side of the first rotating disk (113) is movably connected to the outer side of the second rotating disk (115) by a second hinge (114), the outer side of the second rotating disk (115) is movably connected to the outer side of the third rotating disk (117) by a third hinge (116), and the upper ends of the first rotating disk (113), the second rotating disk (115), and the third rotating disk (117) are connected to the second threaded rod (118) by bolts.

5. The pressing device for a spring-loaded terminal block according to claim 1, characterized in that: The upper end of the second base (201) in the support structure (2) is welded with a third threaded rod (202), and the upper end of the third threaded rod (202) is movably connected in the threaded groove (203).

6. The pressing device for a spring-loaded terminal block according to claim 5, characterized in that: The third threaded rod (202) is locked on the outside to connect the first support ring (204) and the second support ring (206). The first support ring (204) is welded to both sides with a first connecting ring (205), and the second support ring (206) is welded to both sides with a second connecting ring (207).

7. The pressing device for a spring-loaded terminal block according to claim 1, characterized in that: The upper end of the second support plate (301) in the hydraulic structure (3) is bolted to the reset structure (302), and the lower end of the second support plate (301) is held in place by the threaded groove (203). The reset structure (302) is bolted to the inside of the limiting rod (303), and the outer side of the limiting rod (303) is movably connected to the inside of the connecting plate (304).

8. The pressing device for a spring-loaded terminal block according to claim 7, characterized in that: The upper end of the connecting plate (304) is bolted to the pressure plate (305), and the lower end of the connecting plate (304) is bolted to the hydraulic column (107). The lower end of the hydraulic column (107) is movably connected in the hydraulic groove (306).

9. The pressing device for a spring-loaded terminal block according to claim 8, characterized in that: The second support plate (301) is bolted to the third support plate (307) on both sides. The lower end of the third support plate (307) is bolted to the second support column (308). The upper end of the pressure plate (305) is bolted to the third support column (309). The upper end of the third support column (309) is bolted to the fourth support plate (310). The upper end of the fourth support plate (310) is bolted to the hydraulic press (311).