Core position correction clamp

Abstract

The utility model discloses a core position correction clamp, and relates to the technical field of capacitor processing auxiliary tools, the core position correction clamp comprises a mounting seat and a horizontal correction assembly, the horizontal correction assembly comprises a first connecting seat, and the first connecting seat is arranged on the mounting seat; the first driving air cylinder is arranged at the top of the first connecting seat, and an output shaft of the first driving air cylinder is connected with a vertically downward rack; the two first connecting rods are symmetrically and rotatably arranged on the two opposite sides of the first connecting base, and one end of each first connecting rod is provided with a gear connected with the rack in an engaged mode; the two second connecting rods are symmetrically and rotatably arranged on the two opposite sides of the first connecting base, and the first connecting rod and the second connecting rod located on the same side are parallel to each other; and the two positioning clamping jaws are symmetrically located on the two opposite sides of the first connecting base, and the other end of the first connecting rod and the other end of the second connecting rod are rotationally connected with the positioning clamping jaws on the same side correspondingly. The device is simple and compact in structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for capacitor processing, and in particular to a core position correction fixture. Background Technology

[0002] Before performing the welding process, the automatic capacitor welding machine needs to calibrate the position of the capacitor core.

[0003] Currently, most core position correction mechanisms use parallel grippers to ensure the horizontal alignment accuracy of the core. However, different devices have different installation positions for the correction mechanism. In some devices, there are limitations on the position of the parallel gripper and installation difficulties. In addition, when using a parallel gripper, a vertical movement is required to bring the gripper closer to the capacitor core, making the overall structure more complicated. Summary of the Invention

[0004] The main purpose of this utility model is to provide a core position correction fixture, which is simple, compact and easy to use.

[0005] To achieve the above objectives, the present invention proposes a core position correction fixture for positioning the core before welding. The core position correction fixture includes a mounting base and a horizontal correction component disposed on the mounting base. The horizontal correction component includes:

[0006] A first connecting seat is disposed on the mounting seat;

[0007] The first driving cylinder is located on the top of the first connecting seat, and the output shaft of the first driving cylinder is connected to a vertically downward rack.

[0008] The first connecting rod has two parts that are symmetrically and rotatably disposed on opposite sides of the first connecting seat, and one end of the first connecting rod is provided with a gear that meshes with the rack.

[0009] The second link has two links that are symmetrically and rotatably disposed on opposite sides of the first connecting seat, and the first link and the second link located on the same side are parallel to each other;

[0010] The positioning grippers are two in number and symmetrically located on opposite sides of the first connecting seat. The other end of the first connecting rod and the other end of the second connecting rod are respectively rotatably connected to the positioning grippers on the same side.

[0011] Optionally, the positioning gripper includes a connector and a positioning plate disposed at the end of the connector, and the first connecting rod and the second connecting rod are rotatably connected to the connector.

[0012] Optionally, the end of the connector is provided with a first vertical strip hole, through which a threaded fastener passes and is threadedly connected to the positioning plate.

[0013] Optionally, the positioning plate is made of nylon.

[0014] Optionally, the core position correction fixture further includes a front and rear correction assembly, the front and rear correction assembly comprising:

[0015] The second drive cylinder is located at the bottom of the mounting base;

[0016] A push block is connected to the output shaft of the second drive cylinder and is located between the two positioning jaws.

[0017] Optionally, the mounting base is provided with an abutment plate that can slide back and forth, and the mounting base is provided with a second strip-shaped hole that extends back and forth. The side of the second drive cylinder away from the push block abuts against the abutment plate, and the threaded fastener passes through the second strip-shaped hole and is threadedly connected to the second drive cylinder.

[0018] Optionally, the abutment plate can slide back and forth using two adjusting screws.

[0019] Optionally, a limiting groove is provided at the bottom of the mounting base, and the second drive cylinder is slidably disposed in the limiting groove.

[0020] This utility model's horizontal correction component includes a first connecting seat, a first driving cylinder, a first connecting rod, a second connecting rod, and positioning grippers. The first driving cylinder drives the gears to rotate via a rack, causing the two connecting rods to swing synchronously, thereby opening the two positioning grippers upwards or closing them downwards. Because it uses a single driving cylinder and connecting rod to achieve the up, down, left, and right movement of the positioning grippers, it effectively solves the technical problems of limited position, difficult installation, and cumbersome overall structure in the prior art, thus achieving a simple and compact structure and convenient use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a structure of an embodiment of the core position correction fixture of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the core position correction fixture of this utility model from another perspective;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of the core position correction fixture of this utility model;

[0024] Figure 4This is a cross-sectional schematic diagram of the horizontal correction component of this utility model;

[0025] Explanation of icon numbers:

[0026] Core position correction fixture 100; mounting base 10; abutment plate 11; adjusting screw 12; horizontal correction assembly 20; first connecting seat 21; first drive cylinder 22; rack 221; first connecting rod 23; gear 231; second connecting rod 24; positioning gripper 25; connector 251; positioning plate 252; front and rear correction assembly 30; second drive cylinder 31; push block 32. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a core position correction fixture 100, which is used for positioning the core before welding.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] In embodiments of this utility model, such as Figures 1 to 4 As shown, the core position correction fixture 100 includes a mounting base 10 and a horizontal correction component 20 disposed on the mounting base 10. The horizontal correction component 20 includes a first connecting base 21, a first driving cylinder 22, a first connecting rod 23, a second connecting rod 24, and positioning jaws 25. The first connecting base 21 is disposed on the mounting base 10. The first driving cylinder 22 is disposed on the top of the first connecting base 21, and the output shaft of the first driving cylinder 22 is connected to a vertically downward rack 221. There are two first connecting rods 23, which are symmetrically and rotatably disposed on opposite sides of the first connecting base 21. One end of the first connecting rod 23 is provided with a gear 231 that meshes with the rack 221. There are two second connecting rods 24, which are symmetrically and rotatably disposed on opposite sides of the first connecting base 21. The first connecting rod 23 and the second connecting rod 24 on the same side are parallel to each other. There are two positioning jaws 25, which are symmetrically located on opposite sides of the first connecting base 21. The other end of the first connecting rod 23 and the other end of the second connecting rod 24 are respectively rotatably connected to the positioning jaws 25 on the same side.

[0034] In this invention, the first drive cylinder 22 drives the first connecting rod 23 and the second connecting rod 24 to swing through the structure of rack 221 and gear 231. When the connecting rods on the left and right sides swing towards each other, the two positioning grippers 25 move downwards and move closer to each other, thereby correcting the left and right position of the core. When the connecting rods on the left and right sides swing away from each other, the two positioning grippers 25 move upwards and move away from each other, thus moving away from the core. That is, this invention can realize the up-and-down movement and horizontal movement of the positioning grippers 25 with only one cylinder. Compared with parallel pneumatic grippers, it optimizes the mechanical action, realizes dual action with a single cylinder, has a compact structure and low cost. Through the linkage of the actuator, the consistency of the action is improved, the probability of collision is reduced, and the maintenance cost is reduced. Compared with the traditional parallel pneumatic gripper structure with up-and-down transmission, this invention saves more installation space and can solve the problem of limited space.

[0035] In this invention, both ends of the first connecting rod 23 or both ends of the second connecting rod 24 are rotated together by bearings, which improves rotational accuracy and reduces rotational friction. The two connecting rods on one side restrict the movement trajectory of the left and right positioning jaws 25, ensuring that the two positioning jaws 25 move closer together as they move downwards and move further apart as they move upwards.

[0036] The horizontal correction component 20 of this utility model includes a first connecting seat 21, a first driving cylinder 22, a first connecting rod 23, a second connecting rod 24, and positioning grippers 25. The first driving cylinder 22 drives the gear 231 to rotate through the rack 221, causing the two connecting rods to swing synchronously, thereby realizing the upward opening or downward closing of the two positioning grippers 25. Since the technical means of realizing the up, down, left and right movement of the positioning grippers 25 by cooperating with a single driving cylinder and connecting rod is adopted, the technical problems of limited position, difficult installation, and complicated overall structure in the prior art are effectively solved, thus achieving the technical effect of simple and compact structure and convenient use.

[0037] In embodiments of this utility model, such as Figures 1 to 4 As shown, the positioning gripper 25 includes a connector 251 and a positioning plate 252 located at the end of the connector 251. The first connecting rod 23 and the second connecting rod 24 are rotatably connected to the connector 251. The connector 251 has a U-shaped opening groove, and the other end of the first connecting rod 23 and the other end of the second connecting rod 24 both extend into the opening groove and are rotatably engaged. The positioning plate 252 is located at the end of the connector 251 by threaded fasteners.

[0038] In embodiments of this utility model, such as Figures 1 to 4 As shown, the end of the connector 251 has a vertical first strip hole, through which a threaded fastener passes and is threadedly connected to the positioning plate 252. The positioning plate 252 can be adjusted vertically through the first strip hole, which can better position the capacitor core.

[0039] In this embodiment of the invention, the positioning plate 252 is made of nylon. This is inexpensive and does not damage the outer surface of the capacitor core during the positioning process.

[0040] In embodiments of this utility model, such as Figures 1 to 3 As shown, the core position correction fixture 100 also includes a front and rear correction assembly 30, which includes a second drive cylinder 31 and a push block 32. The second drive cylinder 31 is located at the bottom of the mounting base 10. The push block 32 is connected to the output shaft of the second drive cylinder 31 and is located between two positioning jaws 25.

[0041] Understandably, the horizontal correction component 20 is used to position the capacitor core in the X-axis direction, while the front-to-back correction component 30 is used to position the capacitor core in the Y-axis direction. Once the capacitor core is positioned in these two directions, it is positioned on the horizontal plane, which improves welding accuracy. The surface of the pushing block 32 facing the capacitor core is defined as the pushing surface. This invention achieves this as follows: the first driving cylinder 22 drives the horizontal correction component 20, causing the two positioning grippers 25 to move downwards and approach each other, thus correcting the left-right position of the core. Subsequently, the second driving cylinder 31 drives the front-to-back correction component 30, causing the pushing block 32 to approach the capacitor core, contacting the pushing surface and pushing it to the designated position, thus correcting the front-to-back position.

[0042] In this invention, when the two positioning claws 25 are in the downward closed state, the distance between the two positioning claws 25 is slightly greater than the width of the capacitor core, that is, there is a gap between the positioning claws 25 and the capacitor core. The gap set in this invention is 0.5mm. Therefore, when the second drive cylinder 31 drives the front and rear correction assembly 30 to move, the two positioning claws 25 are still in the downward closed state, which can prevent the push block 32 from shifting position during the forward push.

[0043] In embodiments of this utility model, such as Figures 1 to 3 As shown, the mounting base 10 is provided with an adjustable abutment plate 11 that can slide back and forth. The mounting base 10 has a second strip-shaped hole that extends back and forth. The side of the second drive cylinder 31 away from the push block 32 abuts against the abutment plate 11. A threaded fastener passes through the second strip-shaped hole and is threadedly connected to the second drive cylinder 31. The abutment plate 11 can limit the installation position of the second drive cylinder 31, thereby accommodating capacitor cores of different specifications and improving adaptability.

[0044] In embodiments of this utility model, such as Figures 1 to 3 As shown, the abutment plate 11 slides back and forth via two adjusting screws 12. When the adjusting screws 12 are rotated, the abutment plate 11 can move back and forth relative to the mounting base 10. When the position of the abutment plate 11 is determined, the second drive cylinder 31 is moved to the position of contact with the abutment plate 11, and then the connection and fixation are achieved by threaded fasteners.

[0045] In embodiments of this utility model, such as Figures 1 to 3 As shown, a limiting groove is provided at the bottom of the mounting base 10, and the second drive cylinder 31 is slidably disposed in the limiting groove. The limiting groove serves as a guide, restricting the adjustment direction of the second drive cylinder 31, thereby improving the accuracy of the front and rear position correction.

[0046] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A core position correction jig for positioning of a core before welding, characterized by, The core position correction fixture includes a mounting base and a horizontal correction component disposed on the mounting base, the horizontal correction component comprising: A first connecting seat is disposed on the mounting seat; The first driving cylinder is located on the top of the first connecting seat, and the output shaft of the first driving cylinder is connected to a vertically downward rack. The first connecting rod has two parts that are symmetrically and rotatably disposed on opposite sides of the first connecting seat, and one end of the first connecting rod is provided with a gear that meshes with the rack. The second link has two links that are symmetrically and rotatably disposed on opposite sides of the first connecting seat, and the first link and the second link located on the same side are parallel to each other; The positioning grippers are two in number and symmetrically located on opposite sides of the first connecting seat. The other end of the first connecting rod and the other end of the second connecting rod are respectively rotatably connected to the positioning grippers on the same side.

2. The core position correction jig according to claim 1, wherein The positioning gripper includes a connector and a positioning plate located at the end of the connector. The first connecting rod and the second connecting rod are rotatably connected to the connector.

3. The core position correction jig according to claim 2, wherein The connector has a vertical first strip hole at its end, and a threaded fastener passes through the first strip hole and is threadedly connected to the positioning plate.

4. The core position correction jig according to claim 2, wherein The positioning plate is made of nylon.

5. The core position correction jig according to any one of claims 1 to 4, characterized in that, The core position correction fixture further includes a front and rear correction assembly, which includes: The second drive cylinder is located at the bottom of the mounting base; A push block is connected to the output shaft of the second drive cylinder and is located between the two positioning jaws.

6. The core position correction jig according to claim 5, wherein The mounting base is provided with an adjustable abutment plate that can slide back and forth. The mounting base is provided with a second strip-shaped hole that extends back and forth. The side of the second drive cylinder away from the push block abuts against the abutment plate. The threaded fastener passes through the second strip-shaped hole and is threadedly connected to the second drive cylinder.

7. The core position correction jig according to claim 6, wherein The abutment plate slides back and forth via two adjusting screws.

8. The core position correction jig according to claim 5, wherein The bottom of the mounting base has a limiting groove, and the second drive cylinder is slidably disposed in the limiting groove.

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