A telescopic fork structure

By using a cylinder drive in the machine tool fork structure to replace gear and rack transmission, the extension and retraction of the forks is realized, solving the problems of high cost and complex maintenance in existing technologies, reducing maintenance frequency and operating costs, and improving the economy and practicality of the forks.

CN224493658UActive Publication Date: 2026-07-14BEIJING JIASHUN AURORA TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING JIASHUN AURORA TECH CO LTD
Filing Date
2025-09-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing machine tool fork structures rely on gear and rack transmissions, resulting in high operating costs and complex maintenance, requiring regular upkeep and maintenance.

Method used

The secondary fork plate is driven by a cylinder to extend and retract within the primary fork plate, replacing gear and rack transmission. The extension and retraction of the forks is achieved through a pneumatic rod and a pneumatic cylinder.

Benefits of technology

It reduces structural complexity and manufacturing difficulty, decreases maintenance frequency and cost, and improves the economy and practicality of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224493658U_ABST
    Figure CN224493658U_ABST
Patent Text Reader

Abstract

The utility model discloses a telescopic fork structure, including fork bottom plate, the upper surface both sides of fork bottom plate all are fixedly installed with linear guide seat, all are seted up guide sliding slot on two linear guide seats, and the inside limiting sliding connection of two guide sliding slots has guide sliding block, and the fixed mounting of between two guide sliding block top end has first stage fork plate, and the telescopic sliding connection of first stage fork plate's inside has second stage fork plate, and the fixed mounting of one side outer wall on first stage fork plate has cylinder seat, and the fixed mounting of the top end side surface outer wall on second stage fork plate has connecting seat, and the fixed mounting of cylinder seat has pneumatic cylinder, and the output of pneumatic cylinder is provided with telescopic pneumatic rod, the utility model discloses second stage fork plate can drive second stage fork plate in first stage fork plate and carry out telescopic movement handling through the mode of pneumatic cylinder drive, thereby can effectively reduce the complexity of structure use, and reduce transmission complexity, thereby can effectively reduce the manufacturing difficulty, and the maintenance is convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of fork structure technology, specifically a telescopic fork structure. Background Technology

[0002] Machine tool forks typically refer to transfer forks used in automatic loading and unloading systems or automated handling equipment, primarily for the precise storage and efficient transfer of machine tool workpieces.

[0003] In practical use, machine tool forks are mainly used in industrial automation scenarios such as automatic loading and unloading of CNC machine tools, mold changing, high-temperature furnaces, and cold storage. They can achieve seamless integration with production line systems, improve logistics efficiency, and reduce the risks of manual operation.

[0004] In the prior art, telescopic forks include a fixed guide plate and a telescopic guide plate. Gears are installed on the fixed guide plate, and racks are installed on the telescopic guide plate. The extension or retraction of the telescopic guide plate relative to the fixed guide plate is achieved through the meshing of the gears and racks, thereby achieving the purpose of transporting goods.

[0005] However, the telescopic movement of the above-mentioned structure relies excessively on gears and racks. In order to ensure smooth operation, regular maintenance and upkeep of the gears and racks are required, resulting in high overall operating costs. Therefore, this utility model proposes a telescopic fork structure with low operating costs. Utility Model Content

[0006] The purpose of this invention is to provide a telescopic fork structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a telescopic fork structure, including a fork base plate, with linear guide seats fixedly installed on both sides of the upper surface of the fork base plate. The two linear guide seats are mirror-symmetrically distributed, and each of the two linear guide seats has a guide groove. A guide slider is slidably connected within the two guide grooves. A primary fork plate is fixedly installed between the top ends of the two guide sliders. The primary fork plate has a hollow internal structure. A secondary fork plate is telescopically connected inside the primary fork plate. A cylinder seat is fixedly installed on one outer wall of the primary fork plate. A connecting seat is fixedly installed on the top side outer wall of the secondary fork plate. A pneumatic cylinder is fixedly installed on the cylinder seat. A telescopic pneumatic rod is provided at the output end of the pneumatic cylinder. The top end of the pneumatic rod is fixedly connected to the connecting seat.

[0008] Preferably, the primary fork plate and the guide slider adopt an integrated molding structure design.

[0009] Preferably, two symmetrically distributed drive wheels are rotatably mounted between the two linear guide seats via bearings, and the two drive wheels are connected by a drive belt.

[0010] Preferably, a rotary motor is fixedly installed on the outer wall of one side of the linear guide seat, and the output shaft of the rotary motor is connected to one of the transmission wheels.

[0011] Preferably, a connecting block is fixedly installed on the lower surface of the first-stage fork plate, and the connecting block is fixedly sleeved on the outside of the transmission belt.

[0012] Preferably, the outer surface of the fork base plate has several evenly distributed fixing holes on both sides.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The secondary fork plate of this invention can be driven by a cylinder to extend and retract within the primary fork plate. This improves upon the existing gear and rack transmission design by using a separate cylinder for driving, thereby effectively reducing the complexity of the structure and transmission, reducing manufacturing difficulty, facilitating maintenance, and eliminating the need for regular maintenance of gears and racks, thus reducing later operating costs. It offers a simple and economical fork plate with enhanced overall practicality. Attached Figure Description

[0015] Figure 1 This is a right-side perspective three-dimensional structural diagram of the telescopic fork in an embodiment of this utility model;

[0016] Figure 2 This is a left-side perspective three-dimensional structural diagram of the telescopic fork of this utility model embodiment;

[0017] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the first-stage fork plate according to an embodiment of the present utility model;

[0018] Figure 4 This is a side view of the telescopic fork structure according to an embodiment of the present utility model.

[0019] In the diagram: 1. Fork base plate; 2. Linear guide seat; 3. Guide groove; 4. Guide slider; 5. Primary fork plate; 6. Secondary fork plate; 7. Drive wheel; 8. Drive belt; 9. Connecting block; 10. Rotary motor; 11. Cylinder seat; 12. Pneumatic cylinder; 13. Connecting seat; 14. Pneumatic rod; 15. Fixing hole. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-4 The present invention provides an embodiment of a telescopic fork structure, including a fork base plate 1. Linear guide seats 2 are fixedly installed on both sides of the upper surface of the fork base plate 1. The two linear guide seats 2 are distributed in a mirror symmetrical manner. Guide grooves 3 are opened on both linear guide seats 2. Guide sliders 4 are slidably connected in the two guide grooves 3, so that the guide sliders 4 can slide left and right in the linear guide seats 2.

[0024] A primary fork plate 5 is fixedly installed between the tops of the two guide sliders 4. The primary fork plate 5 and the guide sliders 4 adopt an integral molding structure design. The interior of the primary fork plate 5 is a hollow structure design. The interior of the primary fork plate 5 is telescopically connected to a secondary fork plate 6. With this structure design, the secondary fork plate 6 can be telescopically extended within the primary fork plate 5.

[0025] In order to drive the secondary fork plate 6 to extend and retract within the primary fork plate 5, a cylinder seat 11 is fixedly installed on one side outer wall of the primary fork plate 5, a connecting seat 13 is fixedly installed on the top side outer wall of the secondary fork plate 6, a pneumatic cylinder 12 is fixedly installed on the cylinder seat 11, and a telescopic pneumatic rod 14 is provided at the output end of the pneumatic cylinder 12. The top end of the pneumatic rod 14 is fixedly connected to the connecting seat 13.

[0026] This structural design allows the pneumatic cylinder 12 to drive the pneumatic rod 14 to extend and retract. When the pneumatic rod 14 extends and retracts, it can move the secondary fork plate 6 left and right through the connecting seat 13. This allows the secondary fork plate 6 to extend and retract within the primary fork plate 5, thus achieving the desired effect of the telescopic fork of this invention.

[0027] According to the above description, the secondary fork plate 6 of this utility model can be driven by a cylinder to extend and retract within the primary fork plate 5. This improves the existing gear and rack transmission design by using a separate cylinder, thereby effectively reducing the complexity of the structure and transmission, reducing manufacturing difficulty, facilitating maintenance, and avoiding the need for regular maintenance of gears and racks, thus reducing later operating costs. It has a better simple and economical fork operation effect and is more practical overall.

[0028] In this embodiment, in order to drive the first-stage fork plate 5 to move left and right, two symmetrically distributed transmission wheels 7 are rotatably mounted between the two linear guide seats 2 via bearings, and the two transmission wheels 7 are connected by a transmission belt 8.

[0029] In order to drive the transmission belt 8, a rotary motor 10 is fixedly installed on the outer wall of the linear guide seat 2 on one side, and the output shaft of the rotary motor 10 is connected to one of the transmission wheels 7.

[0030] With this structural design, the rotary motor 10 can drive one of the transmission wheels 7 to rotate clockwise or counterclockwise. When one of the transmission wheels 7 is rotating, it can drive the other transmission wheel 7 synchronously through the transmission belt 8. At this time, the transmission belt 8 can transport and transmit between the two transmission wheels 7.

[0031] Furthermore, a connecting block 9 is fixedly installed on the lower surface of the first-stage fork plate 5. The connecting block 9 is fixedly sleeved on the outside of the transmission belt 8. When the transmission belt 8 is conveying, it can synchronously drive the connecting block 9 to move. When the transmission belt 8 is conveying in the forward or reverse direction, it can drive the first-stage fork plate 5 to make linear displacement left and right through the connecting block 9, thereby completing the movement of the fork plate.

[0032] In this embodiment, in order to install and use the fork structure of the present invention as a whole, a plurality of evenly distributed fixing holes 15 are provided on both sides of the outer surface of the fork base plate 1, so that the fork structure assembly of the present invention can be installed as a whole through the fixing holes 15.

[0033] Working principle: When this utility model is in use, the fork structure of this utility model can be installed on a suitable machine tool through the fixing holes 15 on the fork base plate 1, thereby ensuring the normal use of this utility model.

[0034] The present invention can drive one of the transmission wheels 7 to rotate clockwise or counterclockwise by the set rotary motor 10. When one of the transmission wheels 7 is rotating, it can drive the other transmission wheel 7 to perform synchronous transmission through the transmission belt 8. At this time, the transmission belt 8 can perform the conveying and transmission work between the two transmission wheels 7.

[0035] When the transmission belt 8 is conveying, it can synchronously drive the sleeve block 9 to move. When the transmission belt 8 is conveying in the forward or reverse direction, it can drive the first-stage fork plate 5 and the second-stage fork plate 6 to make linear displacement left and right through the sleeve block 9, thereby completing the left and right movement of the fork plate assembly and facilitating the transfer work through the fork plate assembly.

[0036] The present invention uses a pneumatic cylinder 12 to drive a pneumatic rod 14 to extend and retract. When the pneumatic rod 14 extends and retracts, it can move the secondary fork plate 6 left and right through the connecting seat 13. This allows the secondary fork plate 6 to extend and retract within the primary fork plate 5, thus satisfying the use effect of the extendable fork of the present invention.

[0037] As described above, the secondary fork plate 6 of this utility model can be driven by a cylinder to extend and retract within the primary fork plate 5. This improves the existing gear and rack transmission design by using a separate cylinder for driving, thereby effectively reducing the complexity of the structure and transmission, reducing manufacturing difficulty, facilitating maintenance, and avoiding the need for regular maintenance of gears and racks, thus reducing later operating costs. It has a better simple and economical fork operation effect and is more practical overall.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A telescopic fork structure, comprising a fork base plate (1), characterized in that, Linear guide seats (2) are fixedly installed on both sides of the upper surface of the fork base plate (1). The two linear guide seats (2) are distributed in a mirror symmetrical manner. Guide grooves (3) are opened on both linear guide seats (2). Guide sliders (4) are limited and slidably connected in the two guide grooves (3). A first-stage fork plate (5) is fixedly installed between the top ends of the two guide sliders (4). The first-stage fork plate (5) has a hollow structure design inside. A second-stage fork plate (6) is telescopically connected inside the first-stage fork plate (5). A cylinder seat (11) is fixedly installed on one side of the outer wall of the first-stage fork plate (5). A connecting seat (13) is fixedly installed on the top side outer wall of the second-stage fork plate (6). A pneumatic cylinder (12) is fixedly installed on the cylinder seat (11). A telescopic pneumatic rod (14) is provided at the output end of the pneumatic cylinder (12). The top end of the pneumatic rod (14) is fixedly connected to the connecting seat (13).

2. The telescopic fork structure according to claim 1, characterized in that: The first-stage fork plate (5) and the guide slider (4) adopt an integrated molding structure design.

3. The telescopic fork structure according to claim 1, characterized in that: Two symmetrically distributed drive wheels (7) are rotatably mounted between the two linear guide seats (2) via bearings, and the two drive wheels (7) are connected by a drive belt (8).

4. The telescopic fork structure according to claim 3, characterized in that: A rotary motor (10) is fixedly installed on the outer wall of the linear guide seat (2) on one side, and the output shaft of the rotary motor (10) is connected to one of the transmission wheels (7).

5. The telescopic fork structure according to claim 3, characterized in that: A connecting block (9) is fixedly installed on the lower surface of the first-stage fork plate (5), and the connecting block (9) is fixedly sleeved on the outside of the transmission belt (8).

6. The telescopic fork structure according to claim 1, characterized in that: The fork base plate (1) has several evenly distributed fixing holes (15) on both sides of its outer surface.