Multi-head flexible heavy-duty clamping mechanism

Abstract

The utility model discloses a multi -head flexible big force clamping mechanism, including clamping mechanism body, the clamping mechanism body includes the mounting bracket, the mounting bracket lower extreme is equipped with the jaw subassembly, the mounting bracket upper extreme is equipped with the drive assembly, the drive assembly includes adjustable stroke air cylinder of setting in the mounting bracket, adjustable stroke air cylinder lower extreme is equipped with the lower pressure block with guide slot, the lower pressure block with guide slot lower extreme is equipped with the wedge block anti -falling board, be equipped with the sliding slot on the wedge block anti -falling board, the T type lower pressure wedge block of slidingly installed in the sliding slot, the T type lower pressure wedge block upper end is equipped with the high elasticity rubber block, the T type lower pressure wedge block lower extreme is equipped with the triangular wedge block, the utility model discloses the series type flexible transmission chain of adjustable stroke air cylinder + high elasticity rubber block + T type lower pressure wedge block, has realized the constant output force in any position in the stroke, has reached the effect that compatible part tolerance, avoids rigid impact and the clamping force " once regulation, batch consistent ".

Description

Technical Field

[0001] This utility model relates to the field of micro drill bit clamping technology, specifically a multi-head flexible high-pressure clamping mechanism. Background Technology

[0002] In the machining, inspection, or automated assembly of micro drill bits, it is often necessary to stably clamp multiple micro drill bits simultaneously. Due to the small diameter of micro drill bits, high requirements are placed on clamping accuracy, consistency, and clamping force control. Traditional clamping mechanisms mostly use rigid jaws or single-point clamping methods, which have problems such as uneven clamping force, easy damage to workpieces, limited clamping capacity, complex structure, or slow response speed, making it difficult to meet the batch clamping requirements of high efficiency, high consistency, and high reliability.

[0003] Based on this, a multi-head flexible high-pressure clamping mechanism is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a multi-head flexible high-pressure clamping mechanism to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-head flexible high-pressure clamping mechanism includes a clamping mechanism body, the clamping mechanism body including a mounting frame, a gripper assembly at the lower end of the mounting frame, a drive assembly at the upper end of the mounting frame, the drive assembly including an adjustable stroke cylinder disposed on the mounting frame, a pressure block with a guide groove at the lower end of the adjustable stroke cylinder, a wedge anti-fall plate at the lower end of the pressure block with the guide groove, a sliding groove on the wedge anti-fall plate, a T-shaped pressure wedge slidably installed in the sliding groove, a highly elastic rubber block at the upper end of the T-shaped pressure wedge, and a triangular wedge at the lower end of the T-shaped pressure wedge.

[0006] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: the mounting bracket includes a top plate, two mounting plates are symmetrically arranged at the lower end of the top plate, and two sealing plates are symmetrically arranged on both sides of the mounting plates.

[0007] In one alternative: the adjustable stroke cylinder is fixedly mounted on the upper end of the top plate, and the output end of the adjustable stroke cylinder passes through the top plate and is fixedly connected to the lower pressure block with guide groove.

[0008] In one alternative embodiment: the gripper assembly includes two fixed shafts symmetrically rotatably mounted on a mounting plate, each fixed shaft having a plurality of one-to-one corresponding and independent grippers rotatably mounted on it, the grippers being arranged at equal intervals with a spacing not exceeding 10mm, rollers being rotatably mounted on the upper end of each gripper, and a reset element being provided at the lower end of each gripper.

[0009] In one alternative: the reset component includes a spring mounting port located at the lower part of the gripper, a spring is installed in the spring mounting port, and the spring is connected to the spring mounting port by a nut screw.

[0010] In one alternative: the gripper has a V-shaped groove on its inner side.

[0011] In one alternative: the number of T-shaped downward wedge positions matches the number of gripper positions on a single fixed shaft.

[0012] In one alternative: the inclined surfaces on both sides of the triangular wedge block are in contact with the roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves constant output force at any position within the stroke by using a series flexible transmission chain of adjustable stroke cylinder + high elasticity rubber block + T-shaped downward wedge block, thus achieving the effect of being compatible with part tolerances, avoiding rigid impact, and ensuring that the clamping force is "adjusted once and consistent in batches".

[0014] 2. This utility model has a V-groove at the front end of the gripper, which utilizes the two-point self-centering principle to achieve the effect of automatic centering upon insertion of the micro drill bit, consistent subsequent grinding or inspection reference, and no additional positioning device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the drive component in this utility model.

[0017] Figure 3 This is a schematic diagram of the gripper assembly in this utility model.

[0018] Reference numerals in the attached drawings: 100, clamping mechanism body; 200, mounting bracket; 201, top plate; 202, mounting plate; 203, sealing plate; 300, gripper assembly; 301, fixed shaft; 302, gripper; 303, roller; 304, spring mounting port; 305, spring; 306, V-groove; 400, drive assembly; 401, adjustable stroke cylinder; 402, lower pressure block with guide groove; 403, wedge anti-fall plate; 404, slide groove; 405, T-shaped lower pressure wedge; 406, high elasticity rubber block; 407, triangular wedge. Detailed Implementation

[0019] 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.

[0020] In one embodiment, such as Figures 1-3 As shown, a multi-head flexible high-pressure clamping mechanism includes a clamping mechanism body 100, which includes a mounting frame 200. The mounting frame 200 includes a top plate 201, with two mounting plates 202 symmetrically arranged at the lower end of the top plate 201. Two sealing plates 203 are symmetrically arranged on both sides of the mounting plates 202. A gripper assembly 300 is provided at the lower end of the mounting frame 200. The gripper assembly 300 includes two fixed shafts 301 symmetrically rotatably mounted on the mounting plates 202. Several corresponding and independent grippers 302 are rotatably mounted on each fixed shaft 301. The grippers 302 are arranged at equal intervals. The spacing is no more than 10mm. A roller 303 is rotatably mounted on the upper end of the gripper 302. A reset component is provided at the lower end of the gripper 302. The reset component includes a spring mounting port 304 located at the lower part of the gripper 302. A spring 305 is installed inside the spring mounting port 304. The spring 305 is connected to the spring mounting port 304 by a mortise screw. A V-groove 306 is provided on the inner side of the gripper 302. A drive assembly 400 is provided at the upper end of the mounting frame 200. The drive assembly 400 includes an adjustable stroke cylinder 401 located on the mounting frame 200. A pressure block 4 with a guide groove is provided at the lower end of the adjustable stroke cylinder 401. 02. The lower end of the guide-grooved pressing block 402 is provided with a wedge anti-fall plate 403. The wedge anti-fall plate 403 is provided with a sliding groove 404. A T-shaped pressing wedge 405 is slidably installed in the sliding groove 404. A high-elasticity rubber block 406 is provided at the upper end of the T-shaped pressing wedge 405. A triangular wedge 407 is provided at the lower end of the T-shaped pressing wedge 405. An adjustable stroke cylinder 401 is fixedly installed on the upper end of the top plate 201. The output end of the adjustable stroke cylinder 401 passes through the top plate 201 and is fixedly connected to the guide-grooved pressing block 402. The position and number of T-shaped pressing wedges 405 are related to the position of the gripper 302 on the single fixed shaft 301. The number of wedges is matched, and the inclined surfaces on both sides of the triangular wedge 407 contact the roller 303. In use, the adjustable stroke cylinder 401 drives the guide grooved pressing block 402 and the wedge anti-fall plate 403 to move the T-shaped pressing wedge 405 downward. The triangular wedge 407 squeezes the roller 303, causing the gripper 302 to rotate around the fixed shaft 301, so that the lower end of the gripper 302 clamps the micro drill bit, fixing the micro drill bit in the V-groove 306. Through the adaptive deformation capability of the high elasticity rubber block 406, the clamping force of each gripper 302 can be adjusted by itself to avoid damage to the micro drill bit.

[0021] The above embodiments disclose a multi-head flexible high-pressure clamping mechanism. Through a series flexible transmission chain of adjustable stroke cylinder 401 + high elasticity rubber block 406 + T-shaped downward pressure wedge block 405, the output force at any position within the stroke is kept constant. This achieves the effects of being compatible with part tolerances, avoiding rigid impacts, and ensuring that the clamping force is "adjusted once and consistent in batches". At the same time, by suspending several jaws 302 coaxially and independently on the same fixed shaft, and with each jaw having its own spring return, "one jaw, one needle" individual clamping is achieved within a very small spacing of 10 mm. This achieves a high-density layout that can simultaneously clamp 10 φ3.175 mm micro drill bits, with uniform clamping force from each jaw and the ability to be pulled out by hand. Furthermore, by setting a V-groove 306 at the front end of the jaw 302, the two-point self-centering principle is used to achieve the effect of automatic centering upon insertion of the micro drill bit, consistent reference for subsequent grinding or inspection, and no additional positioning device.

[0022] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multi-head flexible high-pressure clamping mechanism, comprising a clamping mechanism body (100), characterized in that, The clamping mechanism body (100) includes a mounting frame (200), a gripper assembly (300) is provided at the lower end of the mounting frame (200), and a drive assembly (400) is provided at the upper end of the mounting frame (200). The drive assembly (400) includes an adjustable stroke cylinder (401) disposed on the mounting frame (200). A guide groove-equipped pressing block (402) is provided at the lower end of the adjustable stroke cylinder (401). A wedge anti-fall plate (403) is provided at the lower end of the guide groove-equipped pressing block (402). A sliding groove (404) is provided on the wedge anti-fall plate (403). A T-shaped pressing wedge (405) is slidably installed in the sliding groove (404). A high-elasticity rubber block (406) is provided at the upper end of the T-shaped pressing wedge (405). A triangular wedge (407) is provided at the lower end of the T-shaped pressing wedge (405).

2. The multi-head flexible high-pressure clamping mechanism according to claim 1, characterized in that, The mounting bracket (200) includes a top plate (201), two mounting plates (202) are symmetrically provided at the lower end of the top plate (201), and two sealing plates (203) are symmetrically provided on both sides of the mounting plate (202).

3. The multi-head flexible high-pressure clamping mechanism according to claim 1, characterized in that, The adjustable stroke cylinder (401) is fixedly installed on the upper end of the top plate (201), and the output end of the adjustable stroke cylinder (401) passes through the top plate (201) and is fixedly connected to the guide groove pressure block (402).

4. The multi-head flexible high-pressure clamping mechanism according to claim 1, characterized in that, The gripper assembly (300) includes two fixed shafts (301) symmetrically rotatably mounted on the mounting plate (202). Each fixed shaft (301) is rotatably mounted with a number of one-to-one and independent grippers (302). The grippers (302) are arranged at equal intervals with a spacing of no more than 10 mm. A roller (303) is rotatably mounted on the upper end of the gripper (302), and a reset member is provided at the lower end of the gripper (302).

5. The multi-head flexible high-pressure clamping mechanism according to claim 4, characterized in that, The reset component includes a spring mounting port (304) located at the lower part of the gripper (302), and a spring (305) is installed in the spring mounting port (304). The spring (305) and the spring mounting port (304) are connected by a nut screw.

6. The multi-head flexible high-pressure clamping mechanism according to claim 4, characterized in that, The gripper (302) has a V-shaped groove (306) on its inner side.

7. The multi-head flexible high-pressure clamping mechanism according to claim 1, characterized in that, The number of T-shaped downward wedges (405) matches the number of grippers (302) on a single fixed shaft (301).

8. The multi-head flexible high-pressure clamping mechanism according to claim 1, characterized in that, The inclined surfaces on both sides of the triangular wedge (407) are in contact with the roller (303).

Images