A telescopic flying fork mechanism

Abstract

This utility model discloses a telescopic fork mechanism, comprising: a wire-passing structure with a wire-passing groove; a telescopic structure including a first slide rail and a limiting groove, the wire-passing structure being disposed within the first slide rail; a support structure including a support block and a limiting component, the support block being disposed on the side of the telescopic structure away from the wire-passing structure, and the limiting component being disposed at the rear end of the support block; and a pressure plate connected to the support block. When the telescopic fork mechanism needs to be locked, the limiting groove and the end of the limiting component away from the support block engage in a limiting fit; when the telescopic fork mechanism needs to be unlocked, the pressure plate is used to press down and drive the support block to disengage the limiting component from the limiting groove, allowing the telescopic structure to move along the support block. This telescopic fork mechanism achieves horizontal limiting through the limiting fit between the limiting component and the limiting groove, preventing the telescopic structure from moving back and forth and ensuring no relative displacement in the locked state; the pressure plate presses down and drives the support block to disengage the limiting component from the limiting groove, thus unlocking the telescopic fork mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of automation equipment technology, and specifically relates to a telescopic mechanism for a flying fork. Background Technology

[0002] In automated production lines, forklift mechanisms are commonly used for mold removal, material handling, and other scenarios. Traditional forklift telescopic mechanisms typically employ the following locking methods: mechanical snap-locking, which uses rigid snaps or pins to fix the telescopic structure, but unlocking requires manual operation or an additional drive mechanism, resulting in low efficiency and difficulty in achieving automated control; pure pneumatic locking, which relies on continuous pressure from a cylinder to maintain the locking state, but there is a risk of accidental unlocking when the air supply is interrupted or the air pressure is insufficient, resulting in poor safety; spring-limited locking, which uses spring force to press the limit block, but the spring is prone to fatigue after long-term use, leading to insufficient locking force or incomplete unlocking; traditional mechanical snaps are prone to wear, and pneumatic locking relies on continuous pressure, both of which may cause accidental displacement due to external impact or component aging, requiring multi-step linkage, making it difficult to integrate into automated processes, and some require additional locking cylinders or electromagnets, increasing cost and size. Utility Model Content

[0003] To address the aforementioned problems, the primary objective of this utility model is to provide a telescopic fork mechanism to resolve the technical problem of the risk of accidental unlocking when the existing technology maintains a locked position.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model provides a telescopic fork mechanism, comprising:

[0006] The wire guide structure is equipped with a wire guide groove;

[0007] The telescopic structure includes a first slide rail and a limiting groove, wherein the wire-passing structure is disposed within the first slide rail;

[0008] A supporting structural component includes a support block and a limiting component. The support block is located on the side of the telescopic structural component away from the guide wire structural component, and the limiting component is located at the rear end of the support block.

[0009] Pressure plate, connected to the support block;

[0010] When the telescopic mechanism of the flying fork needs to be locked, the limiting groove and the end of the limiting component away from the support block are limited and engaged.

[0011] When the telescopic mechanism of the flying fork needs to be unlocked, the pressure plate is used to press down and drive the support block to move the limiting component away from the limiting groove, so that the telescopic structure can move along the support block.

[0012] The horizontal direction is limited by the limiting component and the limiting groove to prevent the telescopic structure from moving back and forth, ensuring no relative displacement in the locked state and strong impact resistance; the unlocking function of the flying fork telescopic mechanism is realized by the pressure plate pressing down to drive the support block to move the limiting component out of the limiting groove. The unlocking action does not require step operation and has a short response time.

[0013] Furthermore, the support block is provided with a mounting groove, and the limiting component includes a movable part and a positioning part, one end of the movable part is disposed in the mounting groove, and the other end is connected to the positioning part.

[0014] The movable part is fixedly installed in the mounting slot and fixed to the support block through the mounting slot, which facilitates the quick replacement or maintenance of the limit component. The positioning part is connected separately from the movable part and can be replaced individually according to the wear condition, reducing maintenance costs. The mounting slot is used to guide and ensure that the movable part is perpendicularly aligned with the limit slot after installation, avoiding jamming caused by off-center loading.

[0015] Furthermore, the positioning element is a pin.

[0016] By engaging the pins with the limiting slots, horizontal positioning is achieved between the supporting structure and the telescopic structure, preventing the telescopic structure from moving back and forth and ensuring that the telescopic fork structure has no relative displacement when locked.

[0017] Furthermore, the movable component is a cantilever beam elastic structure.

[0018] After being compressed and bent, the cantilever beam elastic structure automatically rebounds to its initial position without the need for additional springs or drive components, reducing the number of failure points and achieving automatic reset of elastic deformation. The cantilever beam is directly integrated into the support block, and the deformation only occurs in a local area of ​​the cantilever beam, without affecting the stroke of the telescopic structure.

[0019] Furthermore, it also includes:

[0020] A first drive component is connected to the front end of the telescopic structure and is used to drive the telescopic structure to move back and forth relative to the supporting structure.

[0021] The first drive component acts directly on the rear end of the telescopic structure, resulting in the shortest power transmission path and avoiding errors caused by intermediate transmission structures, thus ensuring high positioning accuracy. The first drive component is installed at the rear end of the telescopic structure, with the thrust direction coinciding with the telescopic axis, avoiding jamming caused by off-center loading.

[0022] Furthermore, it also includes:

[0023] The second drive component is connected to the pressure plate and is used to drive the pressure plate to press down the support block so that the support block drives the positioning member to disengage from the limiting groove.

[0024] The pressure plate is pressed vertically directly by the second drive component. A single action trigger can simultaneously release the horizontal and vertical locking of the limit component, with a short response time.

[0025] Furthermore, the supporting structural member also includes:

[0026] The stop blocks are located on opposite sides of the support block and protrude from the side surface of the support block near the telescopic structure and bend and extend toward the telescopic structure.

[0027] A baffle is provided on opposite sides of the support block and located on the side of the baffle block away from the pressure plate.

[0028] Furthermore, the telescopic structure is provided with sliding grooves on opposite sides, one end of the sliding groove extends through the front end of the telescopic structure, and the other end extends to the rear end of the telescopic structure and forms a retaining wall.

[0029] The end of the stop block away from the support block is slidably engaged with the sliding groove, and the baffle is used to limit the telescopic structure to the first extreme position.

[0030] Physical positioning is achieved by the collision between the stop block and the retaining wall at the rear end of the sliding groove, limiting the first extreme position of the telescopic structure and ensuring high positioning accuracy. When the stop block moves within the sliding groove, it provides lateral guidance to prevent the telescopic structure from swaying. The retaining wall and baffle prevent the stop block from detaching from the sliding groove, so that even if the drive component fails, the telescopic structure will not completely detach.

[0031] Furthermore, it also includes an elastic element, which is disposed in the sliding groove, with one end of the elastic element abutting against the baffle and the other end abutting against the retaining wall.

[0032] By setting an elastic element in the sliding groove of the telescopic structure, and having the elastic element abut against the baffle and retaining wall, the telescopic structure can achieve progressive braking relative to the supporting structure.

[0033] Furthermore, a second slide rail is provided between the telescopic structural member and the support block.

[0034] The guide system formed by the second and first slide rails strictly limits the movement freedom of the telescopic structural components to the front and rear axes, eliminating sway and achieving high-precision guidance.

[0035] Compared with the prior art, the beneficial effects of this application are as follows: The telescopic fork mechanism includes: a wire-passing structure with a wire-passing groove; a telescopic structure including a first slide rail and a limiting groove, the wire-passing structure being disposed within the first slide rail; a support structure including a support block and a limiting component, the support block being disposed on the side of the telescopic structure away from the wire-passing structure, and the limiting component being disposed at the rear end of the support block; wherein, a pressure plate connects to the support block; when the telescopic fork mechanism needs to be locked, the limiting groove and the end of the limiting component away from the support block engage in a limiting fit; when the telescopic fork mechanism needs to be unlocked, the pressure plate is used to press down and drive the support block to move the limiting component away from the limiting groove, allowing the telescopic structure to move along the support block. The limiting fit between the limiting component and the limiting groove achieves horizontal limiting, preventing the telescopic structure from moving back and forth, ensuring no relative displacement in the locked state, and providing strong impact resistance; the pressing down of the pressure plate drives the support block to move the limiting component away from the limiting groove, achieving the unlocking function of the telescopic fork mechanism, the unlocking action does not require step-by-step operation, and the response time is short. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of a telescopic fork mechanism according to this utility model.

[0037] Figure 2 This is a schematic diagram of the structure of the support structure of the telescopic fork mechanism of this utility model after the removal of the line-crossing structure.

[0038] Figure 3 This is a schematic diagram of the structure of the support structure of the telescopic fork mechanism of this utility model after removing the overpass structure and part of the telescopic structure.

[0039] Figure 4 This is a schematic diagram of the supporting structure of the telescopic fork mechanism of this utility model after the movable plate has been removed.

[0040] In the diagram: 10. Wire guide structure; 11. Wire guide groove; 20. Telescopic structure; 21. First slide rail; 23. Sliding groove; 24. Second slide rail; 30. Support structure; 31. Support block; 311. Mounting groove; 32. Limiting component; 321. Movable part; 322. Positioning part; 323. Movable plate; 33. Stop block; 34. Baffle; 40. Pressure plate; 51. First cylinder; 52. First push rod; 60. Second cylinder. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] To achieve the above objectives, the technical solution of this utility model is as follows:

[0043] See Figures 1-4 As shown, this utility model provides a telescopic fork mechanism, comprising:

[0044] The wire guide structure 10 is provided with a wire guide groove 11;

[0045] The telescopic structural component 20 includes a first slide rail 21 and a limiting groove 22, and the wire-passing structural component 10 is disposed in the first slide rail 21;

[0046] The supporting structure 30 includes a supporting block 31 and a limiting component 32. The supporting block 31 is located on the side of the telescopic structure 20 away from the line-crossing structure 10, and the limiting component 32 is located at the rear end of the supporting block 31.

[0047] Pressure plate 40, connecting support block 31;

[0048] When the telescopic mechanism of the flying fork needs to be locked, the limiting groove 22 and the limiting component 32 at the end away from the support block 31 are locked in a limiting engagement.

[0049] When the telescopic mechanism of the flying fork needs to be unlocked, the pressure plate 40 is used to press down the drive support block 31 to drive the limit component 32 to disengage from the limit groove 22, so that the telescopic structure 20 can move along the support block 31.

[0050] Among them, the wire guide structure 10, the wire guide groove 11, the telescopic structure 20, and the first slide rail 21 extend in the same direction. The wire guide structure 10 has a front end and a rear end that are set opposite to each other. The end of the wire guide structure 10 away from the telescopic structure 20 is the front end and the front end is close to the mold head. The wire guide structure 10 slides in conjunction with the first slide rail 21 of the telescopic structure 20. The wire guide groove 11 is a long through groove. The wire guide groove 11 is used to accommodate power lines, signal lines, etc., to achieve orderly bundling and avoid cable tangling that causes motion interference.

[0051] The horizontal direction is limited by the limiting component 32 and the limiting groove 22 to prevent the telescopic structure 20 from moving back and forth, ensuring no relative displacement in the locked state and strong impact resistance; the lifting plate 40 pushes down to drive the support block 31 to drive the limiting component 32 to disengage from the limiting groove 22 to realize the unlocking function of the flying fork telescopic mechanism. The unlocking action does not require step operation and has a short response time.

[0052] Furthermore, the support block 31 is provided with a mounting groove 311, and the limiting component 32 includes a movable part 321 and a positioning part 322. One end of the movable part 321 is disposed in the mounting groove 311, and the other end is connected to the positioning part 322. The movable part 321 is installed in the mounting groove 311 and fixed to the support block 31 through the mounting groove 311, which facilitates the quick replacement or maintenance of the limiting component 32. The positioning part 322 is separately connected to the movable part 321 and can be replaced separately according to the wear condition, reducing maintenance costs. The mounting groove 311 is used to guide and ensure that the movable part 321 is perpendicularly aligned with the limiting groove 22 after installation, avoiding jamming caused by off-center loading.

[0053] Furthermore, the positioning element 322 of the limiting component 32 is a pin, and the limiting groove 22 is a recess. The limiting groove 22 is formed by the recess of the side surface of the telescopic structure 20 facing the support block 31 towards the inside of the telescopic structure 20. The positioning element 322 is engaged with the inside of the limiting groove 22 to achieve a limiting fit between the telescopic structure 20 and the support block 31. The engagement of the pin with the limiting groove 22 achieves horizontal limiting between the support structure 30 and the telescopic structure 20, preventing the telescopic structure 20 from moving back and forth and ensuring that the telescopic fork structure has no relative displacement in the locked state.

[0054] Furthermore, the movable component 321 of the limiting assembly 32 is a cantilever beam elastic structure. By designing the movable component 321 as a cantilever beam elastic structure and configuring it within the mounting groove 311, the cantilever beam elastic structure automatically rebounds to its initial position after being compressed and bent, eliminating the need for additional springs or drive components, reducing potential failure points, and achieving automatic reset of elastic deformation. The cantilever beam elastic structure is directly integrated into the support block 31, and deformation only occurs in a localized area of ​​the cantilever beam elastic structure, without affecting the stroke of the telescopic structure 20.

[0055] Furthermore, the limiting component 32 also includes a movable plate 323, which is located between the positioning member 322 and the movable member 321, and is located on the side of the pressure plate 40 near the support block 31. The movable plate 323 is used to cover the mounting groove 311 and to support the positioning member 322.

[0056] Furthermore, the telescopic fork mechanism proposed in this application further includes: a first drive component connected to the front end of the telescopic structure 20, used to drive the telescopic structure 20 to move back and forth relative to the support structure 30.

[0057] The first drive assembly includes a first cylinder 51 and a first push rod 52. The first push rod 52 is connected between the first cylinder 51 and the telescopic structure 20. Specifically, the first push rod 52 is connected to the rear end of the telescopic structure 20 and is used to drive the telescopic structure 20 to move back and forth relative to the support block 31.

[0058] The first cylinder 51 drives the telescopic structure 20 to move back and forth. When the telescopic mechanism moves towards the die head until the front end of the telescopic structure 20 reaches the first limit position, the telescopic mechanism completes self-locking. The first drive assembly acts directly on the rear end of the telescopic structure 20, resulting in the shortest power transmission path and avoiding errors caused by intermediate transmission structures, thus achieving high positioning accuracy. The first drive assembly is installed at the rear end of the telescopic structure 20, and the thrust direction coincides with the telescopic axis, avoiding jamming caused by off-center loading.

[0059] Furthermore, the fork telescopic mechanism proposed in this application also includes: a second drive assembly connected to the pressure plate 40, used to drive the pressure plate 40 to press down the support block 31, so that the support block 31 drives the positioning member 321 to disengage from the limiting groove 22.

[0060] The second drive assembly includes a second cylinder 60, which is connected to the section of the pressure plate 40 away from the support block 31. The second cylinder 60 drives the telescopic structural member 20 to move back and forth relative to the support block 31. The second cylinder 60 also drives the pressure plate 40 to move up and down. When the telescopic mechanism needs to be unlocked, the second cylinder 60 continuously presses down on the pressure plate 40, causing the pressure plate 40 to press down on the limiting component 32. The limiting component 32 releases the limiting effect on the telescopic structural member 20, allowing the telescopic structural member 20 to move forward until unlocking is complete.

[0061] The second drive component directly presses the pressure plate 40 vertically, and a single action trigger can simultaneously release the horizontal and vertical locking of the limit component 32, with a response time of [time value missing].

[0062] Furthermore, the support structure 30 also includes a stop block 33, which is disposed on opposite sides of the support block 31 and protrudes from the side surface of the support block 31 near the telescopic structure 20 and bends and extends toward the telescopic structure 20.

[0063] Furthermore, the support structure 30 also includes a baffle 34, which is disposed on the support block 31 and located on the side of the block 33 away from the pressure plate 40.

[0064] Furthermore, the telescopic structure 20 is provided with sliding grooves 23 on opposite sides. One end of the sliding groove 23 extends through the front end of the telescopic structure 20, and the other end extends to the rear end of the telescopic structure 20 and forms a retaining wall. The end of the stop block 33 away from the support block 31 is slidably engaged with the sliding groove 23. The baffle 34 is used to limit the telescopic structure 20 to be in the first extreme position, which is the relative support of the telescopic structure 20.

[0065] Physical positioning is achieved by the collision between the stop block 33 and the retaining wall at the rear end of the sliding groove 21, limiting the first extreme position of the telescopic structure 20 and ensuring high positioning accuracy. When the stop block 33 moves within the sliding groove 23, it provides lateral guidance to prevent the telescopic structure 20 from swaying. The retaining wall prevents the stop block 33 from disengaging from the sliding groove 23, so that even if the drive component fails, the telescopic structure 20 will not completely detach.

[0066] Furthermore, the telescopic mechanism of the flying fork proposed in this application also includes an elastic element (not shown), which is disposed in the sliding groove 23. One end of the elastic element abuts against the baffle 34, and the other end abuts against the retaining wall.

[0067] By setting an elastic element in the sliding groove 23 of the telescopic structure 20, and having the elastic element abut against the stop block 33 and the retaining wall, the telescopic structure 20 can achieve progressive braking relative to the supporting structure 30.

[0068] Furthermore, a second slide rail 24 is configured between the telescopic structural member 20 and the support block 31. The second slide rail 24 and the first slide rail 21 form a guiding system, which strictly restricts the degree of freedom of movement of the telescopic structural member 20 in the front and rear axial directions, eliminates wobble, and achieves high-precision guiding function.

[0069] Therefore, the telescopic mechanism of the flying fork includes: a wire-passing structure 10 with a wire-passing groove 11; a telescopic structure 20 including a first slide rail 21 and a limiting groove 22, with the wire-passing structure 10 disposed within the first slide rail 21; and a support structure 30 including a support block 31 and a limiting component 32, with the support block 31 disposed on the side of the telescopic structure 20 away from the wire-passing structure 10 and the limiting component 32 disposed at the rear end of the support block 31; wherein, a pressure plate 40 is connected to the support block 31; when the telescopic mechanism of the flying fork needs to be locked, the limiting groove 22 and the end of the limiting component 32 away from the support block 31 are engaged in a limiting cooperation; when the telescopic mechanism of the flying fork needs to be unlocked, the pressure plate 40 is used to press down and drive the support block 31 to move the limiting component 32 away from the limiting groove 22, so that the telescopic structure 20 can move along the support block 31. The horizontal direction is limited by the limiting component 32 and the limiting groove 22 to prevent the telescopic structure 20 from moving back and forth, ensuring no relative displacement in the locked state and strong impact resistance; the pressure plate 40 presses down to drive the support block 31, which drives the limiting component 32 to disengage from the limiting groove 22 to realize the unlocking function of the telescopic mechanism. The unlocking action does not require step operation and has a short response time.

[0070] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A telescopic fork mechanism, characterized in that, include: The wire guide structure is equipped with a wire guide groove; The telescopic structure includes a first slide rail and a limiting groove, wherein the wire-passing structure is disposed within the first slide rail; A support structure includes a support block and a limiting component. The support block is located on the side of the telescopic structure away from the wire-passing structure, and the limiting component is located at the rear end of the support block. Pressure plate, connected to the support block; When the telescopic mechanism of the flying fork needs to be locked, the limiting groove and the end of the limiting component away from the support block are limited and engaged. When the telescopic mechanism of the flying fork needs to be unlocked, the pressure plate is used to press down and drive the support block to move the limiting component away from the limiting groove, so that the telescopic structure can move along the support block.

2. The telescopic mechanism for a flying fork as described in claim 1, characterized in that, The support block is provided with a mounting groove, and the limiting component includes a movable part and a positioning part. One end of the movable part is disposed in the mounting groove, and the other end is connected to the positioning part.

3. The telescopic mechanism for a flying fork as described in claim 2, characterized in that, The positioning element is a pin.

4. The telescopic mechanism for a flying fork as described in claim 2, characterized in that, The movable component is a cantilever beam elastic structure.

5. The telescopic mechanism for a flying fork as described in claim 1, characterized in that, Also includes: A first drive component is connected to the front end of the telescopic structure and is used to drive the telescopic structure to move back and forth relative to the supporting structure.

6. The telescopic mechanism for a flying fork as described in claim 2, characterized in that, Also includes: The second drive component is connected to the pressure plate and is used to drive the pressure plate to press down the support block so that the support block drives the positioning member to disengage from the limiting groove.

7. The telescopic mechanism for a flying fork as described in claim 1, characterized in that, The supporting structural component also includes: The stop blocks are located on opposite sides of the support block and protrude from the side surface of the support block near the telescopic structure and bend and extend toward the telescopic structure. A baffle is provided on opposite sides of the support block and located on the side of the baffle block away from the pressure plate.

8. The telescopic mechanism for a flying fork as described in claim 7, characterized in that, The telescopic structure has sliding grooves on opposite sides. One end of the sliding groove extends through the front end of the telescopic structure, and the other end extends to the rear end of the telescopic structure and forms a retaining wall. The end of the stop block away from the support block is slidably engaged with the sliding groove, and the baffle is used to limit the telescopic structure to the first extreme position.

9. A telescopic fork mechanism as described in claim 8, characterized in that, It also includes an elastic element, which is disposed in the sliding groove, with one end of the elastic element abutting against the baffle and the other end abutting against the retaining wall.

10. The telescopic mechanism for a flying fork as described in claim 1, characterized in that, A second slide rail is provided between the telescopic structural member and the support block.

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