Elastic limiting structure of insert pin

Abstract

The utility model relates to the technical field of die assembly, and discloses an insert pin elastic limiting structure which comprises a connecting structure, a limiting assembly and a fixing structure, the limiting assembly is arranged in the connecting structure, and the fixing structure is arranged at the top end of the connecting structure. The rotating disc drives the lead screw to rotate so that the first trapezoidal block can move, then the second trapezoidal block can be driven to move, the second trapezoidal block drives the first sliding rod to stretch into the limiting groove in the pin sleeve, the pin sleeve is limited, accurate control over the first sliding rod can be achieved, the first sliding rod can reliably stretch into the limiting groove of the pin sleeve, and therefore accurate positioning is achieved; and it is guaranteed that components do not deviate in the working process, the stretching depth of the first sliding rod can be flexibly adjusted, and therefore different limiting requirements are met, good adaptability and flexibility are achieved, and adjustment and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould assembly technical field, especially a kind of embedded part pin elastic limiting structure. BACKGROUND

[0002] A kind of positioning and limiting system for mechanical device, it is mainly applied to the occasion needing to accurately control component position and prevent excessive movement, the structure realizes flexible limiting to embedded part by the deformation characteristics of elastic material, both can guarantee the free movement of component in working process, and effectively limit its deviation from setting position.

[0003] Applicant finds that Chinese patent discloses "a kind of embedded part pin elastic limiting structure" by searching, its publication (announcement) number is "CN214819965U", the patent facilitates the loading and removal of embedded part pin, and prevents embedded part pin from falling due to its own gravity, further improves embedded part pin positioning stability, but the device does not use screw rod to control, equipment can lack flexible adjustment capability, limit applicability, elastic limiting piece limits embedded part pin, but it is more troublesome to remove the limiting of embedded part pin, for this purpose, a kind of embedded part pin elastic limiting structure is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of embedded part pin elastic limiting structure, to solve the problem that there is no use of screw rod to control in the background art described above, equipment can lack flexible adjustment capability, limit applicability, elastic limiting piece limits embedded part pin, but it is more troublesome to remove the limiting of embedded part pin.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of embedded part pin elastic limiting structure, including connecting structure, limiting component and fixed structure, the limiting component is arranged in the inside of connecting structure, the fixed structure is arranged at the top of connecting structure, the connecting structure includes embedded part pin and pin sleeve, the limiting component includes screw groove, cavity and second trapezoidal block, the embedded part pin is installed screw rod by screw groove, the inside bottom of the cavity is provided with first sliding slot, the two sides of the cavity are symmetrically provided with installation cavity and second sliding slot respectively, the first trapezoidal block is rotatably installed by bearing seat at the bottom of the screw rod, the second trapezoidal block is slidably connected with first sliding slot by sliding block, one end of the second trapezoidal block is fixedly installed first sliding rod, the second trapezoidal block is fixedly connected with the inner wall of installation cavity by first spring, the inner wall of pin sleeve is provided with the limiting slot matched with first sliding rod.

[0006] As a preferred scheme, the pin sleeve is provided with a cavity, and one end of the embedded part pin is matched with the cavity.

[0007] As a preferred scheme, the screw groove is arranged at the middle position of the insert pin, and the top end of the screw groove is flush with the surface of the insert pin; and the cavity is arranged at the bottom end of the insert pin, and the cavity is communicated with the screw groove.

[0008] As a preferred scheme, the first sliding groove is arranged at the inner bottom end of the cavity, the second sliding groove is communicated with the outside of the insert pin through the insert pin, the cavity, the mounting cavity and the second sliding groove are communicated with each other, and the inner diameter of the mounting cavity is larger than the inner diameter of the second sliding groove.

[0009] As a preferred scheme, the screw rod is arranged in the screw groove, the top end of the screw rod is fixedly arranged with the rotating disc, the first trapezoidal block is arranged in the cavity, the second trapezoidal block is arranged on the two sides of the first trapezoidal block, and the inclined surface of the second trapezoidal block is flush with the inclined surface of the first trapezoidal block, the first sliding rod extends into the second sliding groove through the mounting cavity, the first sliding rod is slidably connected with the second sliding groove, the first spring is sleeved on the first sliding rod, one end of the first spring is fixedly connected with the inner wall of the mounting cavity, and the other end of the first spring is fixedly connected with the side wall of the second trapezoidal block.

[0010] As a preferred scheme, the fixing structure comprises a circular block and a fixing seat, the circular block is fixedly arranged on the screw rod and at the bottom end of the rotating disc, the fixing seat is fixedly arranged at the top end of the insert pin and on one side of the screw rod, the second sliding rod is slidably arranged on the fixing seat, one end of the second sliding rod is fixedly arranged with the handle, and the other end of the second sliding rod is fixedly arranged with the fixing disc.

[0011] As a preferred scheme, the second spring is sleeved on the second sliding rod, one end of the second spring is fixedly connected with the fixing seat, the other end of the second sliding rod is fixedly connected with the fixing disc, and the side wall of the circular block is provided with a limiting hole matched with the second sliding rod.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] 1. The limiting assembly is arranged, the rotating disc drives the screw rod to rotate, the first trapezoidal block is moved, the second trapezoidal block is moved, the second trapezoidal block drives the first sliding rod to extend into the limiting groove in the pin sleeve, the pin sleeve is limited, the accurate control of the first sliding rod can be realized, the first sliding rod can reliably extend into the limiting groove in the pin sleeve, accurate positioning is realized, the components are not deviated in the working process, the extension depth of the first sliding rod can be flexibly adjusted, different limiting requirements can be adapted, good adaptability and flexibility are achieved, and adjustment and maintenance are facilitated.

[0014] 2. The fixing structure is provided with the second sliding rod, which is inserted into the limiting hole in the round block under the elastic force of the second spring, thereby limiting the screw rod, which can effectively prevent the screw rod from loosening or slipping during work, ensures the position stability, is favorable for the accuracy and safety of equipment operation, the structure automatically completes the limiting by the elastic force of the spring, does not need a complex control system, reduces the number of components, improves the reliability of the system, and reduces the difficulty and cost of equipment maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a sectional structure schematic view of the utility model;

[0017] Figure 3 It is a sectional view schematic view of the insert pin of the utility model;

[0018] Figure 4 It is a sectional view schematic view of the pin sleeve of the utility model;

[0019] Figure 5 It is Figure 3 It is a local enlarged schematic view of position A;

[0020] Figure 6 It is one of the limiting assembly partial schematic view of the utility model;

[0021] Figure 7 It is the second limiting assembly partial schematic view of the utility model;

[0022] Figure 8 It is a fixing structure schematic view of the utility model.

[0023] In the drawing: 1, connecting structure; 11, insert pin; 12, pin sleeve; 13, cavity; 2, limiting assembly; 201, screw groove; 202, cavity; 203, first sliding groove; 204, installation cavity; 205, second sliding groove; 206, screw rod; 207, rotating disc; 208, first trapezoidal block; 209, limiting groove; 210, second trapezoidal block; 211, sliding block; 212, first sliding rod; 213, first spring; 3, fixing structure; 31, round block; 32, fixing seat; 33, second sliding rod; 34, fixing disc; 35, handle; 36, second spring; 37, limiting hole. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. 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 protection scope of the present application.

[0025] Embodiment one:

[0026] Please refer to the accompanying Figure 1 - the Figure 7 A kind of insert pin elastic limiting structure, including connecting structure 1, limiting component 2 and fixed structure 3, limiting component 2 is arranged in the inside of connecting structure 1, fixed structure 3 is arranged at the top of connecting structure 1, fixed structure 3 is limited to limiting component 2, connecting structure 1 includes insert pin 11 and pin sleeve 12, pin sleeve 12 is provided with cavity 13, one end of insert pin 11 is matched with cavity 13.

[0027] The limiting assembly 2 comprises a threaded groove 201, a cavity 202 and a second trapezoidal block 210. The threaded groove 201 is arranged at the middle position of the insert pin 11, and the top end of the threaded groove 201 is flush with the surface of the insert pin 11. The cavity 202 is arranged at the bottom end of the insert pin 11, and the cavity 202 is in communication with the threaded groove 201. The inner bottom end of the cavity 202 is provided with a first sliding groove 203. The two sides of the cavity 202 are symmetrically provided with a mounting cavity 204 and a second sliding groove 205, respectively. The second sliding groove 205 penetrates through the insert pin 11 and is in communication with the outside of the insert pin 11. The cavity 202, the mounting cavity 204 and the second sliding groove 205 are in communication with each other. The inner diameter of the mounting cavity 204 is larger than that of the second sliding groove 205. A lead screw 206 is screwed in the threaded groove 201. The top end of the lead screw 206 extends to the top end of the insert pin 11 through the threaded groove 201. The top end of the lead screw 206 is fixedly installed with a rotating disc 207. The end of the lead screw 206 away from the rotating disc 207 is rotatably installed with a first trapezoidal block 208 through a bearing seat. The first trapezoidal block 208 is arranged in the cavity 202. The bottom end of the second trapezoidal block 210 is fixedly installed with a sliding block 211. The sliding block 211 is in the first sliding groove 203, and the second trapezoidal block 210 is slidably connected with the first sliding groove 203 through the sliding block 211. The second trapezoidal block 210 is located on the two sides of the first trapezoidal block 208, and the inclined surface of the second trapezoidal block 210 is flush with the inclined surface of the first trapezoidal block 208. The end of the second trapezoidal block 210 away from the first trapezoidal block 208 is fixedly installed with a first sliding rod 212. The first sliding rod 212 extends into the second sliding groove 205 through the mounting cavity 204, and is slidably connected with the second sliding groove 205. The first sliding rod 212 is sleeved with a first spring 213. The first spring 213 is arranged in the mounting cavity 204, and one end of the first spring 213 is fixedly connected with the inner wall of the mounting cavity 204. The other end of the first spring 213 is fixedly connected with the side wall of the second trapezoidal block 210. The inner wall of the pin sleeve 12 is provided with a limiting groove 209 matched with the first sliding rod 212.

[0028] Specifically, in the limiting assembly 2, the rotating disc 207 drives the lead screw 206 to rotate, which promotes the movement of the first trapezoidal block 208, and further drives the movement of the second trapezoidal block 210, so that the first sliding rod 212 accurately extends into the limiting groove 209 of the pin sleeve 12 to achieve limiting, and the first sliding rod 212 can be accurately controlled and reliably extended to achieve precise positioning, which ensures that the parts do not deviate during work, and the extension depth can be flexibly adjusted to adapt to different needs, which has good adaptability and flexibility, and is convenient for adjustment and maintenance.

[0029] Embodiment two:

[0030] Please refer to the accompanying Figure 1 and the accompanying Figure 8, the fixed structure 3 includes round block 31 and fixed seat 32, round block 31 is fixedly installed on screw rod 206 and at the bottom end position of rotary disc 207, fixed seat 32 is fixedly installed at the top end of insert pin 11 and at the side of screw rod 206, second sliding rod 33 is slidingly installed on fixed seat 32, second sliding rod 33 one end fixedly installs handle 35, the end fixedly installed fixed disc 34 of second sliding rod 33 away from handle 35, second spring 36 is sleeved on second sliding rod 33, second spring 36 one end is fixedly connected with fixed seat 32, the other end of second sliding rod 33 is fixedly connected with fixed disc 34, the side wall of round block 31 is provided with the limiting hole 37 matched with second sliding rod 33.

[0031] Specifically, in the fixed structure 3 set, the second sliding rod 33 is inserted into the limiting hole 37 of the round block 31 by the elastic force of the second spring 36, so as to limit the screw rod 206, which can effectively avoid the loosening or sliding of the screw rod 206 during work, ensure the stable position, and facilitate the accurate and safe operation of the equipment.

[0032] The utility model discloses a kind of insert pin elastic limiting structures, the end of insert pin 11 is inserted into the cavity 13 in pin sleeve 12, limiting slot 209 and second sliding groove 205 are aligned with each other at this time, rotary disc 207 is rotated, screw rod 206 is rotated by rotary disc 207, and first trapezoidal block 208 is moved downward by screw rod 206 in thread groove 201 so as to drive, while round block 31 is rotated with screw rod 206, when first trapezoidal block 208 moves downward, the inclined surface of first trapezoidal block 208 is contacted with the inclined surface of second trapezoidal block 210, so that second trapezoidal block 210 is slid in first sliding groove 203 by sliding block 211, first sliding rod 212 is slid outward from second sliding groove 205 by the sliding of second trapezoidal block 210 and enters into limiting slot 209, pin sleeve 12 is limited by first sliding rod 212, while second trapezoidal block 210 moves and compresses first spring 213, when the bottom end of first trapezoidal block 208 is contacted with the bottom surface of cavity 202, the limiting hole 37 on the side wall of round block 31 is aligned with second sliding rod 33, second sliding rod 33 is automatically inserted into limiting hole 37 under the elastic force of second spring 36 at this time, round block 31 is limited by second sliding rod 33 in turn and limits screw rod 206.

[0033] When it is needed to release the limiting of the pin sleeve 12, the handle 35 is pulled to drive the second slide rod 33 to slide in the fixed seat 32, and the second spring 36 is compressed, so that the second slide rod 33 is separated from the limiting hole 37, the rotating disc 207 is reversely rotated, the first trapezoidal block 208 is driven to move up in the threaded groove 201, the second trapezoidal block 210 is driven to slide in the slide block 211 under the elastic force of the first spring 213, and the first slide rod 212 is inserted into the second slide groove 205, so that the limiting of the pin sleeve 12 is released.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application have been described, and are not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An insert pin elastic stop structure, characterized by: The utility model provides a connecting structure, limiting assembly and fixed structure, limiting assembly is arranged in the inside of connecting structure (1), fixed structure (3) is arranged at the top of connecting structure (1), connecting structure (1) includes insert pin (11) and pin sleeve (12), limiting assembly (2) includes screw groove (201), cavity (202) and second trapezoidal block (210), insert pin (11) is installed screw rod (206) through screw groove (201), the inside bottom of cavity (202) is provided with first sliding slot (203), the both sides of cavity (202) are provided with installation cavity (204) and second sliding slot (205) respectively, first trapezoidal block (208) is rotatably installed through bearing seat at the bottom of screw rod (206), second trapezoidal block (210) is slidably connected with first sliding slot (203) through sliding block (211), first sliding rod (212) is fixedly installed at one end of second trapezoidal block (210), second trapezoidal block (210) is fixedly connected with the inner wall of installation cavity (204) through first spring (213), the inner wall of pin sleeve (12) is provided with limiting slot (209) and first sliding rod (212) is matched.

2. The insert pin elastic stop structure of claim 1, wherein: The pin sleeve (12) is provided with a cavity (13), and one end of the insert pin (11) is matched with the cavity (13).

3. The insert pin elastic check structure of claim 1, wherein: The screw groove (201) is arranged at the middle position of the insert pin (11), and the top end of the screw groove (201) is flush with the surface of the insert pin (11). The cavity (202) is arranged at the bottom end of the insert pin (11), and the cavity (202) is in communication with the screw groove (201).

4. The insert pin elastic check structure of claim 1, wherein: The first sliding slot (203) is arranged at the inner bottom of the cavity (202), the second sliding slot (205) passes through the insert pin (11) and is in communication with the outside of the insert pin (11), the cavity (202), the installation cavity (204) and the second sliding slot (205) are in communication with each other, and the inner diameter of the installation cavity (204) is larger than the inner diameter of the second sliding slot (205).

5. The insert pin elastic check structure of claim 4, wherein: The screw rod (206) is threadedly installed in the screw groove (201), the top end of the screw rod (206) is fixedly installed with a rotary disc (207), the first trapezoidal block (208) is arranged in the cavity (202), the second trapezoidal block (210) is arranged on the both sides of the first trapezoidal block (208), and the inclined surface of the second trapezoidal block (210) is flush with the inclined surface of the first trapezoidal block (208), the first sliding rod (212) extends into the second sliding slot (205) through the installation cavity (204), the first sliding rod (212) is slidably connected with the second sliding slot (205), the first spring (213) is sleeved on the first sliding rod (212), one end of the first spring (213) is fixedly connected with the inner wall of the installation cavity (204), and the other end of the first spring (213) is fixedly connected with the side wall of the second trapezoidal block (210).

6. The insert pin elastic check structure of claim 1, wherein: The fixing structure (3) comprises a round block (31) and a fixing base (32), the round block (31) is fixedly installed on the screw rod (206) and at the bottom end position of the rotating disc (207), the fixing base (32) is fixedly installed on the top end of the insert pin (11) and at one side of the screw rod (206), a second sliding rod (33) is slidingly installed on the fixing base (32), one end of the second sliding rod (33) is fixedly installed with a handle (35), and the other end of the second sliding rod (33) away from the handle (35) is fixedly installed with a fixing disc (34).

7. The insert pin elastic check structure of claim 6, wherein: A second spring (36) is sleeved on the second sliding rod (33), one end of the second spring (36) is fixedly connected with the fixing base (32), the other end of the second sliding rod (33) is fixedly connected with the fixing disc (34), and the side wall of the round block (31) is provided with a limiting hole (37) matched with the second sliding rod (33).

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