Spring clamping structure based on ring guide rail

Abstract

The utility model discloses a spring clamping structure based on annular guide rail relates to guide rail transmission equipment technical field, including support, install the guide rail of support top, transmission mechanism and install the clamping mechanism of transmission mechanism, the fixed rack of support inboard, transmission mechanism includes the sliding block of sliding setting in the guide rail, install the motor and gear of sliding block, and the gear of motor drive engages with rack to drive the sliding block and remove, clamping mechanism includes the fixed block of fixed in the sliding block, is connected in the fixed block's guide rod, the clamping block of cover setting in the guide rod and spring, and spring is connected in the fixed block and clamping block between to promote the clamping block and realize clamping. The utility model discloses through will drive arrangement and spring clamping mechanism height integration, solved the prior art annular transmission clamping device structure complex, the problem of big space occupation, with compact structure, the degree of integration is high, effectively reduces equipment cost and simplifies control system, clamping structure simple and reliable and need not the beneficial effect of additional power source.

Description

Technical Field

[0001] This utility model relates to the field of guide rail transmission equipment technology, and in particular to a spring clamping structure based on an annular guide rail. Background Technology

[0002] In automated production and assembly processes, it is necessary to reliably clamp the workpiece and accurately transfer it from one station to the next along a preset trajectory. For the transfer requirements of circular and closed paths, existing technologies use a rotary table in conjunction with multiple independent clamping devices.

[0003] Multiple pneumatic and electric grippers are distributed and installed on a large rotating platform. By driving the entire platform to rotate, the grippers on the platform move synchronously, thereby realizing the circular transfer of workpieces. However, this combined solution has gradually revealed some shortcomings in practical applications. First, integrating a large rotating platform with multiple independent gripping units inevitably makes the structure of the entire equipment very complex and bulky, occupying a lot of production space. Second, each independent gripping device requires a corresponding power source. For example, pneumatic grippers require complex air pipelines, while electric grippers require independent motor drives and electrical control circuits. This makes the wiring and control logic of the entire system extremely cumbersome. Especially on a platform that needs to rotate continuously, this multi-component stacking integration method not only significantly increases the manufacturing cost and maintenance difficulty of the equipment, but also reduces the long-term operational reliability of the system due to its complex structure.

[0004] Therefore, this utility model proposes a spring clamping structure based on an annular guide rail to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of existing spring clamping structures based on ring guide rails, which combine ring transmission and workpiece clamping functions, such as complex structure, large space occupation, high equipment cost and complicated control system, this utility model aims to provide a spring clamping structure based on ring guide rails with improved structure that can effectively solve the above problems.

[0006] This utility model provides a spring clamping structure based on a ring guide rail, including: a bracket, a guide frame, a transmission mechanism, a clamping mechanism; as well as a rack, a motor, a gear, a fixing block, a guide rod, a clamping block, and an elastic spring.

[0007] The clamping mechanism consists of a fixed block, a guide rod, a clamping block, and an elastic spring. The two ends of the guide rod are fixedly connected to the fixed block. The clamping block is sleeved on the guide rod and can slide along the guide rod. The two ends of the elastic spring are fixed between the fixed block and the clamping block, respectively.

[0008] Furthermore, the guide frame is installed on the top of the support, the slider of the transmission mechanism is slidably mounted on the guide frame, the fixing block of the clamping mechanism is fixed on the top of the slider, the rack is fixed on the inner side of the support and is concentrically mounted with the guide rail, the motor and gear of the transmission mechanism are installed on the bottom of the slider, the motor drives the gear to rotate, and the gear and rack are combined by meshing transmission.

[0009] Preferably, the guide rail consists of an inner rail and an outer rail.

[0010] Preferably, the bottom of the slider is provided with a mounting groove, and the slider is mounted on the top of the guide frame through the mounting groove.

[0011] Preferably, the transmission mechanism further includes a sliding seat, which is mounted on the bottom of the slider and slides along the guide rail on its outer side.

[0012] Preferably, the gear is positioned inside the guide frame and meshes with the rack.

[0013] Preferably, the clamping mechanism specifically includes two clamping blocks, two elastic springs, and two guide rods. The two guide rods are arranged in parallel, and the two clamping blocks are respectively sleeved on the corresponding guide rods.

[0014] Preferably, the two elastic springs are used to push the corresponding clamping blocks to move towards each other to achieve the clamping function.

[0015] Preferably, the guide rod to be checked is used to limit the direction of movement of the clamping block in order to prevent the clamping block from shifting.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem that the existing technology requires the combined use of a rotating platform, linear module and independent gripper to achieve the ring transmission and clamping function, which leads to a complex overall structure, large space occupation and high cost. It achieves the technical effects of compact structure, high integration, effective reduction of equipment cost and simplification of control system by integrating the drive device composed of motor, gear and rack and spring clamping mechanism on the same slider that can move along the ring guide rail.

[0018] 2. This utility model solves the problems of relatively complex structure, need for additional air source and complex electrical control, and inconvenient clamping force adjustment of traditional clamping devices by using a spring to push the clamping block to move along the guide rod to achieve clamping. It achieves the technical effect of simple and reliable clamping structure, no need for additional power source, stable clamping action, and convenient adjustment of clamping force by replacing the spring. Attached Figure Description

[0019] Figure 1 This is a perspective view of a spring clamping structure based on a ring guide rail proposed in this utility model;

[0020] Figure 2 This is a split view of the guide rail in a spring clamping structure based on a ring guide rail proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the transmission mechanism in a spring clamping structure based on a ring guide rail proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping mechanism in a spring clamping structure based on a ring guide rail proposed in this utility model.

[0023] Legend:

[0024] 1. Support; 2. Guide frame; 3. Transmission mechanism; 31. Slider; 32. Mounting slot; 33. Sliding seat; 34. Motor; 35. Gear; 36. Rack; 4. Clamping mechanism; 41. Fixing block; 42. Clamping block; 43. Elastic spring; 44. Guide rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Example:

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A spring clamping structure based on a ring guide rail includes a bracket 1, a guide frame 2, a transmission mechanism 3, and a clamping mechanism 4. The bracket 1 serves as the mounting platform for the entire device. The guide frame 2 is fixedly connected to the top of the bracket 1 and is a ring structure consisting of an inner rail and an outer rail, providing a ring-shaped motion path for the transmission mechanism 3. A rack 36 is fixedly connected to the inner side of the bracket 1 and is concentrically arranged with the guide frame 2. The transmission mechanism 3 and the clamping mechanism 4 are integrated into a movable module that moves along the guide frame 2. The transmission mechanism 3 drives the entire module to move, and the clamping mechanism 4 clamps the workpiece. The transmission mechanism 3 includes a slider 31, a motor 34, a gear 35, and a sliding seat 33. The bottom of the slider 31 is provided with a mounting groove 32, through which the slider 31 is mounted on the guide frame. At the top of slider 31, a sliding seat 33 is fixedly connected to the bottom of slider 31. The outer side of the sliding seat 33 is slidably connected to the guide frame 2. Motor 34 is fixedly connected to the bottom of slider 31. The output shaft of motor 34 is rotatably connected to gear 35. Gear 35 is meshed with rack 36. Clamping mechanism 4 is installed at the top of slider 31. Clamping mechanism 4 includes fixed block 41, clamping block 42, elastic spring 43 and guide rod 44. Fixed block 41 is fixedly connected to the top of slider 31. Both ends of guide rod 44 are fixedly connected to fixed block 41. Clamping block 42 is sleeved on guide rod 44 and slidably connected to guide rod 44. Both ends of elastic spring 43 are fixedly connected to fixed block 41 and clamping block 42 respectively.

[0028] Please refer to Figure 3 and Figure 4In the transmission mechanism 3, the rack 36 is fixedly connected to the inner side of the bracket 1. The rack 36 is arranged concentrically with the guide frame 2. The motor 34 is fixedly connected to the bottom of the slider 31. The output shaft of the motor 34 is rotatably connected to the gear 35. The teeth of the gear 35 and the tooth grooves of the rack 36 form a stable meshing transmission connection, providing a stable and reliable driving force for the precise circular movement of the slider 31 along the guide frame 2. The fixing block 41 of the clamping mechanism 4 is fixedly connected to the top of the slider 31, serving as the mounting base of the clamping mechanism 4. The guide rod 44 is fixed at both ends and connected to the fixing block 41, forming a stable guiding structure. The clamping block 42 has a through hole inside. Block 42 is sleeved on the outer periphery of guide rod 44 through a through hole and forms a sliding connection with guide rod 44. Elastic spring 43 is sleeved on the outside of guide rod 44. The two ends of elastic spring 43 are respectively fixedly connected to the side wall of fixed block 41 and the side wall of clamping block 42, ensuring that clamping block 42 can automatically reset and generate a stable clamping force by utilizing the elastic potential energy of elastic spring 43 after being pulled open by external force. At the same time, the setting of guide rod 44 plays a precise limiting role in the movement direction of clamping block 42, preventing clamping block 42 from deviating during clamping. For adjusting the clamping force required by clamping mechanism 4, those skilled in the art can achieve this by replacing elastic spring 43 with different elastic coefficients. This is a conventional technical choice and will not be described in detail here.

[0029] Please refer to Figure 2 The guide frame 2 is specifically composed of an inner rail and an outer rail, which are structurally independent and are connected by a fixed connection. The inner rail and the outer rail together form a closed and continuous circular motion track. As another preferred embodiment, please refer to... Figure 3 The bottom of the slider 31 is integrally formed with two mounting grooves 32. The cross-sectional profile of the mounting grooves 32 is precisely matched with the top profile of the guide frame 2. The slider 31 is stably mounted on the top of the guide frame 2 through the mounting grooves 32 in a sliding connection. Furthermore, the transmission mechanism 3 also includes a sliding seat 33 installed at the bottom of the slider 31 by a fixed connection. The outer surface of the sliding seat 33 is slidably connected to the side wall of the guide frame 2. The sliding seat 33 and the mounting grooves 32 work together to improve the stability and anti-overturning ability of the slider 31 when it moves at high speed along the guide frame 2. As another preferred embodiment, please refer to Figure 1 and Figure 3 The gear 35 is installed inside the annular space enclosed by the guide frame 2, and forms a stable meshing transmission with the rack 36, which is also fixed inside the bracket 1. For a preferred embodiment of the clamping mechanism 4, please refer to... Figure 4The clamping mechanism 4 specifically includes two clamping blocks 42, two elastic springs 43, and two guide rods 44. The two guide rods 44 are fixedly connected to the fixed block 41 in a parallel manner. The two clamping blocks 42 are respectively slidably sleeved on the corresponding guide rods 44. The two elastic springs 43 are respectively disposed between the corresponding clamping blocks 42 and the fixed block 41. The rigid structure of the guide rods 44 provides a unique linear degree of freedom for the reciprocating motion of the clamping blocks 42, so as to precisely limit the movement direction of the clamping blocks 42 and prevent any angular deviation of the clamping blocks 42 during use.

[0030] Working principle: First, install the bracket 1 in the preset position, and install the guide 2 on the top of the bracket 1. The guide 2 is divided into an inner rail and an outer rail, which is a ring structure. The rack 36 is fixed on the inner side of the bracket 1 and keeps concentric with the guide 2. The slider 31 of the transmission mechanism 3 is mounted on the top of the guide 2. The two mounting slots 32 at the bottom of the slider 31 are mounted on the top of the guide 2. The sliding seat 33 is installed at the bottom of the slider 31. The outer side of the sliding seat 33 can slide along the guide 2. The motor 34 is installed at the bottom of the slider 31. The output shaft at the bottom of the motor 34 is connected to the gear 35. Adjust the position of the gear 35 so that it meshes with the rack 36 to complete the assembly of the transmission mechanism 3.

[0031] Install the clamping mechanism 4, fix the fixing block 41 on the top of the slider 31, connect the two ends of the guide rod 44 to the fixing block 41, fit the clamping block 42 on the outside of the guide rod 44, and fix the two ends of the elastic spring 43 between the fixing block 41 and the clamping block 42 so that the elastic spring 43 is in a natural extension and contraction state, thus completing the overall installation of the device.

[0032] In use, pull the clamping blocks 42 to both sides, compress the elastic spring 43, place the workpiece to be clamped between the two clamping blocks 42, release the clamping blocks 42, the elastic spring 43 releases elastic potential energy, pushes the clamping blocks 42 to move towards the middle along the guide rod 44, the clamping blocks 42 fit against the surface of the workpiece, and the workpiece is fixed. The guide rod 44 restricts the movement direction of the clamping blocks 42 to prevent the clamping blocks 42 from deviating.

[0033] Start the motor 34, which drives the gear 35 to rotate. The gear 35 meshes with the rack 36 to drive the slider 31 to move along the annular guide frame 2. The clamping mechanism 4 moves synchronously with the sliding seat 33 to realize the annular transmission of the workpiece.

[0034] To remove the workpiece, pull the clamping blocks 42 to both sides to compress the elastic springs 43. After removing the workpiece, release the clamping blocks 42, and the clamping blocks 42 will return to their original position. If the clamping force needs to be adjusted, the elastic springs 43 with different elastic coefficients can be replaced to achieve workpiece clamping and circular transmission.

Claims

1. A spring clamping structure based on an annular guide rail, comprising: Support (1); Guide frame (2), the guide frame (2) is installed on the top of the bracket (1); The transmission mechanism (3) includes a slider (31) that is slidably disposed on the guide frame (2). A clamping mechanism (4) is mounted on the top of the slider (31); Its features are, The inner side of the bracket (1) is fixed with a rack (36) that is concentrically arranged with the guide frame (2). The transmission mechanism (3) also includes a motor (34) and a gear (35) installed at the bottom of the slider (31), the output shaft of the motor (34) is connected to the gear (35), and the gear (35) meshes with the rack (36); The clamping mechanism (4) includes a fixed block (41), a guide rod (44), a clamping block (42), and an elastic spring (43). The fixed block (41) is fixed to the top of the slider (31). The two ends of the guide rod (44) are connected to the fixed block (41). The clamping block (42) is sleeved on the guide rod (44) and can slide along the guide rod (44). The two ends of the elastic spring (43) are respectively fixed between the fixed block (41) and the clamping block (42).

2. The spring clamping structure based on a ring guide rail according to claim 1, characterized in that, The guide frame (2) consists of an inner rail and an outer rail.

3. The spring clamping structure based on a ring guide rail according to claim 1, characterized in that, The bottom of the slider (31) is provided with a mounting groove (32), and the slider (31) is mounted on the top of the guide frame (2) through the mounting groove (32).

4. The spring clamping structure based on a ring guide rail according to claim 1, characterized in that, The transmission mechanism (3) also includes a sliding seat (33) installed at the bottom of the slider (31), the outer side of which slides along the guide frame (2).

5. The spring clamping structure based on a ring guide rail according to claim 1, characterized in that, The gear (35) is located inside the guide frame (2) and meshes with the rack (36).

6. The spring clamping structure based on a ring guide rail according to claim 1, characterized in that, The clamping mechanism (4) includes two clamping blocks (42), two elastic springs (43) and two guide rods (44). The two guide rods (44) are arranged in parallel, and the two clamping blocks (42) are respectively sleeved on the corresponding guide rods (44).

7. A spring clamping structure based on an annular guide rail according to claim 6, characterized in that, The two elastic springs (43) are used to push the corresponding clamping blocks (42) to move towards each other to achieve clamping.

8. The spring clamping structure based on a ring guide rail according to claim 1, characterized in that, The guide rod (44) is used to limit the movement direction of the clamp (42) and prevent the clamp (42) from deviating.

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