Lead core positioning device for lead core vibration isolation rubber support production

By designing a lead core positioning device for the production of lead core vibration isolation rubber support, the problems of high cost and poor applicability of lead core in the existing technology are solved, and the precise positioning and fixing of lead cores are achieved, the production cost is reduced, and it is suitable for small-scale production.

CN119973904AInactive Publication Date: 2025-05-13ZHEJIANG QINSHAN RUBBER ENG SHARES CO LTD
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Patent Information

Application Number
CN202510299270.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing lead core vibration isolation rubber bearing production, the lead core positioning method is costly and has poor applicability, making it difficult to meet the needs of small-scale production.

Method used

A lead core positioning device for the production of lead core vibration isolation rubber support is designed, including a main base, a clamping mechanism and a positioning mechanism. The clamping mechanism clamps and limits the lower connecting steel plate through the clamping jaws and the limiting T plate. The positioning mechanism adjusts the main base to be concentric with the lower connecting steel plate through the driving component and the limiting component, realizing the precise positioning and installation of the lead core rod.

Benefits of technology

Through the use of this device, the convenient positioning and fixing of lead cores is achieved, production costs are reduced, applicability is improved, and suitable for small-scale production.

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Abstract

The invention belongs to the technical field of lead core support production, and discloses a lead core positioning device for lead core vibration isolation rubber support production, which comprises a main body base and a lower connecting steel plate, and further comprises a clamping mechanism, an upper connecting steel plate and a lower connecting steel plate, the lower connecting steel plates are arranged on the two sides of the main body base to fix the main body base by clamping the lower connecting steel plates; the positioning mechanism is mounted on the inner side of the main body base and is used for positioning the main body base and clamping and limiting the pencil lead rod at the same time; through cooperation of the clamping mechanism, the main body base and other structures, after the main body base is positioned, the main body base is fixed conveniently, a lower connecting steel plate is clamped through a clamping claw, then a limiting gear is meshed with an elastic reset block so as to keep fixation, the clamping claw is limited through teeth and a limiting T plate, and the clamping claw is clamped through the clamping claw. And the lower connecting steel plate is clamped by the clamping device, so that the main body base is fixed, and the lead core rod can be conveniently mounted into the lower connecting steel plate.
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Description

Technical Field

[0001] The invention belongs to the technical field of lead core bearing production, in particular to a lead core positioning device for producing lead core vibration isolation rubber bearings. Background Art

[0002] Lead core vibration isolation rubber bearings, also known as lead core seismic isolation rubber bearings, are a type of support device designed specifically for structures such as buildings and bridges. They are used to reduce the impact of earthquakes or other vibrations on the overall structure. They provide support for the superstructure through the elastic deformation of the rubber layer. At the same time, they use the seismic isolation properties of the rubber to isolate and disperse the energy generated by seismic waves.

[0003] In the production of lead core vibration isolation rubber bearings, the positioning of the lead core is a key step, which directly affects the performance and stability of the bearings. The existing positioning method is to customize a special mold, and a positioning groove should be designed in the mold to fix the position of the lead core. This method has poor applicability and high cost in small-scale production. Therefore, a lead core positioning device for the production of lead core vibration isolation rubber bearings is provided. Summary of the invention

[0004] In order to solve the problems of high cost and poor applicability mentioned in the above background technology, the present invention provides a lead core positioning device for producing lead core vibration isolation rubber bearings.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lead core positioning device for producing a lead core vibration isolation rubber bearing, comprising a main body base and a lower connecting steel plate, wherein a lead core rod is installed in the middle of the lower connecting steel plate, and further comprising:

[0006] A clamping mechanism is arranged on both sides of the main body base to fix the main body base by clamping the lower connecting steel plate;

[0007] A positioning mechanism is installed on the inner side of the main body base to position the main body base and clamp and limit the lead rod;

[0008] Wherein, the clamping mechanism comprises a pair of clamping claws and a pair of limit T-plates slidably connected to the main body base, a limit gear is arranged on the side of the limit T-plate, and a fixed tooth plate is arranged on the side of the limit gear away from the limit T-plate;

[0009] The positioning mechanism includes a driving component and a plurality of groups of limiting components. The driving component is used to pull the limiting component to move the limiting component in all directions. The limiting component is used to contact with the lower connecting steel plate to position the main body base.

[0010] Preferably, the main body base is located at the top of the lower connecting steel plate and conflicts with the lower connecting steel plate. A mounting hole matching the lead rod is opened in the middle of the lower connecting steel plate, and the lead rod conflicts with the limit assembly.

[0011] Preferably, the clamping claw is L-shaped, the clamping claw is distributed on both sides of the main base and clamps the lower connecting steel plate, the side of the limiting T-plate is provided with teeth, the teeth are meshed and connected with the limiting gear, and the limiting gear is meshed and connected with the elastic reset block.

[0012] Preferably, the top of the limit gear and the bottom of the elastic reset block are both inclined, the bottom of the limit gear is rotatably connected to a fixed tooth plate, a support rod is provided in the middle of the limit gear, the support rod is rotatably connected to the main base, and a rotating handle is provided on the top of the support rod that penetrates the main base.

[0013] Preferably, the driving assembly comprises a rotating disk, the rotating disk is rotatably connected to the main body base, an arc groove is provided in a circular shape in the middle of the rotating disk, and a toggle rod is slidably connected inside the rotating disk;

[0014] The top of the toggle rod penetrates the top of the main body base and is provided with a toggle handle. The top of the main body base is provided with a slide groove matching the toggle rod and a limit groove matching the toggle handle.

[0015] Preferably, the limit assembly includes a limit block, the limit block is slidably connected to the main base, a slider is slidably connected inside the limit block, the slider is rotatably connected to a pair of flip support rods on the side, the flip support rods are rotatably connected to a positioning block at one end away from the slider, a tension spring is fixedly connected to the middle of the positioning block, and one end of the tension spring is fixedly connected to the limit block.

[0016] Preferably, the limit block is distributed in a ring shape on the inner side of the main base and corresponds to the position of the arc groove. The limit block is slidably connected to the main base. A limit rod is provided on one side of the limit block and the limit rod is slidably connected to the arc groove. When the rotating disk rotates, the limit rod is squeezed to slide inside the arc groove, thereby pushing the limit block to retract inward or open outward.

[0017] Preferably, a pull rod penetrating the limit block is provided on the top of the slider. When the slider slides downward, the flip support rod flips to push the positioning block outward, so that the positioning block moves to the outside of the limit block and presses the positioning block down into the mounting hole in the middle of the lower connecting steel plate.

[0018] Preferably, the positioning block is in conflict with the inner wall of the mounting hole in the middle of the lower connecting steel plate, and the limit block is pulled by squeezing the rotating disk, so that the limit block and the flip support rod pull the positioning block to contact the inner wall of the mounting hole, so that the main body base is pushed to slide on the top of the lower connecting steel plate with the mounting hole as the center.

[0019] Preferably, when the slider moves upward, the slider will pull the flip support rod to move synchronously, so that the flip support rod drives the positioning block to move upward. When the positioning block and the arc groove are no longer in conflict, the tension spring will pull the positioning block into the limit block.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention cooperates with structures such as a clamping mechanism and a main body base, thereby facilitating fixing the main body base after the main body base is positioned. The clamping claw clamps the lower connecting steel plate, and then the limiting gear engages with the elastic reset block to keep it fixed. The clamping claw is limited by teeth and a limiting T-plate to clamp the lower connecting steel plate, thereby completing the fixing of the main body base, thereby facilitating the installation of the lead rod into the lower connecting steel plate.

[0022] The present invention cooperates with structures such as a driving component and a limit component to facilitate adjusting the main body base to be concentric with the lower connecting steel plate. The limit block is squeezed by the arc groove to make the positioning stop block contact the inner wall of the installation hole, so that the positioning stop block drives the main body base to move to the top of the lower connecting steel plate through the limit block and the rotating disk to maintain the same center as the lower connecting steel plate, thereby keeping the main body base concentric with the lower connecting steel plate, conveniently completing the positioning, and forming a vertical limit channel through the limit block to facilitate the installation of the lead core rod into the lower connecting steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a side cross-sectional schematic diagram of the present invention;

[0025] Figure 3 It is a cross-sectional schematic diagram of the clamping mechanism of the present invention;

[0026] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0027] Figure 5 It is a cross-sectional schematic diagram of the limiting component of the present invention;

[0028] Figure 6 This is a diagram showing the effect of the positioning of the limit assembly of the present invention.

[0029] In the figure: 1. main base; 2. clamping mechanism; 201. clamping claw; 202. limit T-plate; 203. teeth; 204. limit gear; 205. fixed tooth plate; 206. elastic reset block; 3. lower connecting steel plate; 4. positioning mechanism; 41. driving assembly; 411. rotating disk; 412. arc groove; 413. toggle rod; 42. limit assembly; 421. limit block; 422. slider; 423. flip support rod; 424. positioning block; 425. tension spring; 5. lead core rod. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 6 As shown, the present invention provides a lead core positioning device for producing a lead core vibration isolation rubber bearing, comprising a main body base 1 and a lower connecting steel plate 3, wherein a lead core rod 5 is installed in the middle of the lower connecting steel plate 3, and further comprising:

[0032] The clamping mechanism 2 is arranged on both sides of the main body base 1 and fixes the main body base 1 by clamping the lower connecting steel plate 3;

[0033] A positioning mechanism 4, which is installed on the inner side of the main body base 1 and is used to position the main body base 1 and clamp and limit the lead rod 5;

[0034] The clamping mechanism 2 includes a pair of clamping claws 201 and a pair of limit T-plates 202 that are slidably connected to the main base 1. A limit gear 204 is provided on the side of the limit T-plate 202. A fixed tooth plate 205 is provided on the side of the limit gear 204 away from the limit T-plate 202.

[0035] The positioning mechanism 4 includes a driving component 41 and a plurality of limit components 42 . The driving component 41 is used to pull the limit components 42 to move the limit components 42 around. The limit components 42 are used to contact with the lower connecting steel plate 3 to position the main base 1 .

[0036] like Figures 2 to 4 As shown, the main body base 1 is located on the top of the lower connecting steel plate 3 and conflicts with the lower connecting steel plate 3. A mounting hole matching the lead rod 5 is opened in the middle of the lower connecting steel plate 3, and the lead rod 5 conflicts with the limit assembly 42;

[0037] The clamping claws 201 are L-shaped, and are distributed on both sides of the main base 1 and clamp the lower connecting steel plate 3. The side of the limiting T plate 202 is provided with teeth 203, and the teeth 203 are meshed and connected with the limiting gear 204, and the limiting gear 204 is meshed and connected with the elastic reset block 206;

[0038] The top of the limiting gear 204 and the bottom of the elastic reset block 206 are both inclined, and the bottom of the limiting gear 204 is rotatably connected to a fixed tooth plate 205. A support rod is provided in the middle of the limiting gear 204, and the support rod is rotatably connected to the main base 1. At the same time, a rotating handle is provided on the top of the support rod that penetrates the main base 1.

[0039] The above scheme is adopted: by setting the clamping mechanism 2, the clamping claw 201 moves to clamp the lower connecting steel plate 3, so as to fix the main body base 1 that has completed the positioning, and the setting of the limit T plate 202 is used to limit and fix the clamping claw 201, and the limit gear 204 is meshed with the teeth 203 on the side of the limit T plate 202, so that the limit T plate 202 is limited and fixed by the teeth 203 meshed with the limit gear 204, and at the same time, the limit gear 204 itself is meshed with the elastic reset block 206. The limit gear 204 is engaged with the teeth 203 and the elastic reset block 206 at the same time, so that the limit T plate 202 is fixed. The fixed tooth plate 205 arranged at the bottom of the limit gear 204 is used to push the limit gear 204 to move up and mesh with the elastic reset block 206. The top of the limit gear 204 and the bottom of the elastic reset block 206 are both inclined, so that the limit gear 204 is easy to mesh with the elastic reset block 206 when it needs to be reset after being misaligned, so as to avoid the two from getting stuck with each other.

[0040] like Figures 3 to 6 As shown, the driving assembly 41 includes a rotating disk 411, which is rotatably connected to the main base 1, and an arc groove 412 is formed in a circular shape in the middle of the rotating disk 411, and a toggle rod 413 is slidably connected inside the rotating disk 411;

[0041] The top of the toggle rod 413 penetrates the top of the main body base 1 and is provided with a toggle handle. The top of the main body base 1 is provided with a slide groove matching the toggle rod 413 and a limit groove matching the toggle handle.

[0042] The above scheme is adopted: through the setting of the driving component 41, it is used to squeeze the limit component 42, so that the limit component 42 moves and opens in all directions at equal intervals with the center of the main base 1 as the unified center. By setting the arc groove 412, it is convenient to push the limit component 42 to move at equal intervals at the same time. A toggle rod 413 is set on the rotating disk 411 to control the rotation of the rotating disk 411 and fix the rotating disk 411 at the same time. The toggle rod 413 is inserted into the limiting groove to complete the fixation of the rotating disk 411.

[0043] like Figures 3 to 6 As shown, the limiting assembly 42 includes a limiting block 421, which is slidably connected to the main base 1, and a slider 422 is slidably connected inside the limiting block 421. The slider 422 is rotatably connected to a pair of flip support rods 423 on the side, and the flip support rods 423 are rotatably connected to the ends away from the slider 422. A positioning block 424 is rotatably connected, and a tension spring 425 is fixedly connected to the middle of the positioning block 424, and one end of the tension spring 425 is fixedly connected to the limiting block 421;

[0044] The limit block 421 is distributed in a ring shape on the inner side of the main base 1 and corresponds to the position of the arc groove 412. The limit block 421 is slidably connected to the main base 1. A limit rod is set on one side of the limit block 421 and the limit rod is slidably connected to the arc groove 412. When the rotating disk 411 rotates, the limit rod is squeezed to slide inside the arc groove 412, thereby pushing the limit block 421 to retract inward or open outward.

[0045] The above scheme is adopted: by setting a limit assembly 42, the limit block 421 pulls the positioning block 424 to contact the inner wall of the mounting hole, so as to adjust the position of the main base 1 so that it remains concentric with the lower connecting steel plate 3, and the positioning of the main base 1 is completed. The limit rod set on the limit block 421 enables the rotating disk 411 to conveniently squeeze the limit block 421 to move, and the slider 422 and the flip support rod 423 set inside the limit block 421 are used to control the extension and storage of the positioning block 424, so that it can be easily retracted after positioning, ensuring that the position of the limit block 421 remains unchanged after positioning.

[0046] like Figures 2 to 6 As shown, a pull rod penetrating the limit block 421 is provided on the top of the slider 422. When the slider 422 slides downward, the flip support rod 423 flips and pushes the positioning stop block 424 to move outward, so that the positioning stop block 424 moves to the outside of the limit block 421 and presses the positioning stop block 424 downward into the mounting hole in the middle of the lower connecting steel plate 3.

[0047] The positioning stop block 424 contacts the inner wall of the middle mounting hole of the lower connecting steel plate 3, and the limiting block 421 is pulled by squeezing the rotating disk 411, so that the limiting block 421 and the flip support rod 423 pull the positioning stop block 424 to contact the inner wall of the mounting hole, so that the main base 1 is pushed to slide on the top of the lower connecting steel plate 3 with the mounting hole as the center.

[0048] The above scheme is adopted: a pull rod is set on the top of the slider 422 to control the up and down movement of the slider 422. When the slider 422 slides downward, the flip support rod 423 flips and pushes the positioning stop block 424 to move outward, so that the positioning stop block 424 moves to the outside of the limit block 421 and presses the positioning stop block 424 down into the mounting hole in the middle of the lower connecting steel plate 3. Then, the rotating disk 411 can be used to squeeze the limit block 421, so that the limit block 421 is pulled, and then the limit block 421 and the flip support rod 423 pull the positioning stop block 424 to contact the inner wall of the mounting hole, so that the main base 1 is pushed and moved to be concentric with the lower connecting steel plate 3.

[0049] like Figures 2 to 6 As shown, when the slider 422 moves upward, the slider 422 will pull the flip support rod 423 to move synchronously, so that the flip support rod 423 drives the positioning block 424 to move upward. When the positioning block 424 is no longer in contact with the arc groove 412, the tension spring 425 will pull the positioning block 424 into the limit block 421.

[0050] The above solution is adopted: when the main base 1 completes the positioning, the slider 422 is moved by the pull rod, so that the slider 422 pulls the positioning stop block 424 to move upward through the flip support rod 423. When the positioning stop block 424 is no longer in contact with the arc groove 412, the tension spring 425 will pull the positioning stop block 424 into the limit block 421.

[0051] The working principle and use process of the present invention are as follows: when in use, firstly, the slider 422 is pressed downward, so that the slider 422 pushes the flip support rod 423 to flip, so that the flip support rod 423 pushes the positioning stop block 424 to move outward, and then the slider 422 continues to push the positioning stop block 424 to the lower side of the limit block 421 through the flip support rod 423 and extend it from the lower side of the main base 1, and then the positioning stop block 424 is placed into the installation hole in the middle of the lower connecting steel plate 3;

[0052] After the main body base 1 is placed on the top of the lower connecting steel plate 3, the toggle rod 413 is used to drive the rotating disk 411 to rotate to the limit groove, and the toggle rod 413 is pressed down into the limit groove to clamp the rotating disk 411. The rotating disk 411 squeezes the limit block 421 through the arc groove 412 to move outward, so that the positioning block 424 contacts the inner wall of the installation hole, and the positioning block 424 drives the main body base 1 to move on the top of the lower connecting steel plate 3 through the limit block 421 and the rotating disk 411, so that the main body base 1 moves to keep the same center as the lower connecting steel plate 3;

[0053] After the main base 1 is aligned with the center of the lower connecting steel plate 3, the limit gear 204 is pressed downward to release the engagement of the limit gear 204 with the elastic reset block 206, and then the limit gear 204 is twisted to make the limit gear 204 drive the limit T plate 202 through the limit T plate 202 to push the clamping claw 201 to move toward the middle, so that the clamping claw 201 contacts the lower connecting steel plate 3, and then the limit gear 204 is released so that the limit gear 204 is pushed upward by the fixed tooth plate 205 and engages with the elastic reset block 206 again to fix the clamping claw 201, and finally the slider 422 is pulled upward to retract the positioning block 424, so that a vertical limit channel can be formed through the limit block 421, so that the lead rod 5 can be installed into the lower connecting steel plate 3.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead core positioning device for producing lead core vibration isolation rubber bearings, comprising a main base (1) and a lower connecting steel plate (3), wherein a lead core rod (5) is installed in the middle of the lower connecting steel plate (3), characterized in that: Also includes: A clamping mechanism (2) is arranged on both sides of the main body base (1) and fixes the main body base (1) by clamping the lower connecting steel plate (3); A positioning mechanism (4) is installed on the inner side of the main body base (1) and is used to position the main body base (1) and to clamp and limit the lead rod (5); The clamping mechanism (2) comprises a pair of clamping claws (201) and a pair of limit T-plates (202) slidably connected to the main body base (1); a limit gear (204) is arranged on the side of the limit T-plate (202); and a fixed tooth plate (205) is arranged on the side of the limit gear (204) away from the limit T-plate (202); The positioning mechanism (4) comprises a driving component (41) and a plurality of groups of limiting components (42); the driving component (41) is used to pull the limiting component (42) to move the limiting component (42) in all directions; the limiting component (42) is used to contact with the lower connecting steel plate (3) to position the main body base (1).

2. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 1 is characterized in that: The main body base (1) is located at the top of the lower connecting steel plate (3) and contacts the lower connecting steel plate (3). A mounting hole matching the lead rod (5) is provided in the middle of the lower connecting steel plate (3). The lead rod (5) contacts the limit assembly (42).

3. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 1 is characterized in that: The clamping claw (201) is L-shaped, and is distributed on both sides of the main base (1) and clamps the lower connecting steel plate (3). The side of the limiting T-plate (202) is provided with teeth (203), and the teeth (203) are meshedly connected with the limiting gear (204), and the limiting gear (204) is meshedly connected with the elastic reset block (206).

4. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 3 is characterized in that: The top of the limit gear (204) and the bottom of the elastic reset block (206) are both in the shape of an inclined surface. The bottom of the limit gear (204) is rotatably connected to a fixed tooth plate (205). A support rod is provided in the middle of the limit gear (204). The support rod is rotatably connected to the main base (1). At the same time, a rotating handle is provided on the top of the support rod that penetrates the main base (1).

5. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 1, characterized in that: The driving assembly (41) comprises a rotating disk (411), the rotating disk (411) is rotatably connected to the main base (1), the middle part of the rotating disk (411) is provided with arc grooves (412) in an annular shape, and the interior of the rotating disk (411) is slidably connected to a toggle rod (413); The top of the toggle rod (413) penetrates the top of the main body base (1) and is provided with a toggle handle. The top of the main body base (1) is provided with a slide groove matching the toggle rod (413) and a limit groove matching the toggle handle.

6. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 1, characterized in that: The limiting assembly (42) comprises a limiting block (421), the limiting block (421) is slidably connected to the main base (1), a slider (422) is slidably connected inside the limiting block (421), a pair of flip support rods (423) are rotatably connected to the side of the slider (422), one end of the flip support rod (423) away from the slider (422) is rotatably connected to a positioning block (424), a tension spring (425) is fixedly connected to the middle of the positioning block (424), and one end of the tension spring (425) is fixedly connected to the limiting block (421).

7. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 6, characterized in that: The limit block (421) is distributed in an annular shape on the inner side of the main body base (1) and corresponds to the position of the arc groove (412). The limit block (421) is slidably connected to the main body base (1). A limit rod is provided on one side of the limit block (421) and the limit rod is slidably connected to the arc groove (412). When the rotating disk (411) rotates, the limit rod is squeezed to slide inside the arc groove (412), thereby pushing the limit block (421) to be retracted inward or opened outward.

8. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 6, characterized in that: A pull rod penetrating the limit block (421) is arranged at the top of the slider (422). When the slider (422) slides downward, the flip support rod (423) flips to push the positioning block (424) outward, so that the positioning block (424) moves to the outside of the limit block (421) and presses the positioning block (424) downward into the installation hole in the middle of the lower connecting steel plate (3).

9. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 6, characterized in that: The positioning stopper (424) contacts the inner wall of the mounting hole in the middle of the lower connecting steel plate (3), and the limiting block (421) is pulled by squeezing the rotating disk (411), so that the limiting block (421) and the flip support rod (423) pull the positioning stopper (424) to contact the inner wall of the mounting hole, so that the main base (1) is pushed to slide on the top of the lower connecting steel plate (3) with the mounting hole as the center.

10. The lead core positioning device for producing lead core vibration isolation rubber bearings according to claim 6, characterized in that: When the slider (422) moves upward, the slider (422) will pull the flip support rod (423) to move synchronously, so that the flip support rod (423) drives the positioning block (424) to move upward. When the positioning block (424) and the arc groove (412) are no longer in conflict, the tension spring (425) will pull the positioning block (424) into the interior of the limit block (421).