Mechanical clamp quick-change mechanism

Abstract

The utility model discloses a mechanical clamp quick-change mechanism which comprises a mechanical arm body, one end of the mechanical arm body is connected with clamping jaws through a plurality of sliding rails, clamping blocks are arranged on the opposite sides of the clamping jaws, and the mechanical clamp quick-change mechanism further comprises installation assemblies which are arranged on the clamping jaws and used for installing the clamping blocks. And the mounting assembly comprises two mounting holes formed in the clamping jaw, the two mounting holes are connected with mounting plates in a sliding mode, one ends of the two mounting plates are connected with the clamping block, and the clamping jaw is provided with a limiting assembly used for limiting the two mounting plates. According to the utility model, through the arrangement of the mounting assembly, the limiting assembly and the driving assembly are utilized to limit and release the limiting of the clamping block in the replacement process of the clamping block, the whole replacement process does not need to use a special tool, the operation is simple, and the implementation is convenient, so that the rapid replacement of the clamping block is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and specifically relates to a quick replacement mechanism for mechanical fixtures. Background Art

[0002] In a mechanical hand that uses a cylinder to push each jaw to approach or move away from each other, due to the limitation of the cylinder stroke, when clamping workpieces with different diameters, it is necessary to replace different thickness of clamping blocks to meet the clamping requirements of the workpieces. The existing clamping blocks are fixedly connected to the side wall of the jaw by two screws. When replacing, not only the use of special tools is required, but also the two screws need to be rotated separately and repeatedly to achieve the replacement of the clamping blocks, thereby reducing the replacement efficiency of the clamping blocks.

[0003] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is as follows:

[0005] A quick replacement mechanism for mechanical fixtures includes a mechanical hand body. One end of the mechanical hand body is connected with jaws through a plurality of slide rails. A clamping block is arranged on one side of each jaw facing each other. The mechanism further includes an installation component arranged on each jaw for installing the clamping block.

[0006] The installation component includes two installation holes opened on the jaw. An installation plate is slidably connected to the two installation holes. One end of the two installation plates is connected to the clamping block. The jaw is provided with a limiting component for limiting the two installation plates.

[0007] As a preferred solution, the limiting component includes an installation frame fixedly connected to the side of the jaw away from the clamping block. Two sliding plates are connected in the installation frame through a telescopic component. A limiting plate is fixedly connected to one side of the two sliding plates away from each other. Limiting holes are opened on one side of the two installation plates close to each other. The two limiting holes are arranged in a matching manner with the limiting plate. The installation frame is provided with a driving component for driving the two limiting plates.

[0008] As a preferred solution, one end of the installation plate away from the clamping block is provided with an inclined surface.

[0009] As a preferred solution, the telescopic component includes a telescopic rod fixedly connected between opposite inner walls of the installation frame. The two sliding plates are slidably connected to the two telescopic rods. Springs are sleeved on the side walls of the two telescopic rods. Two ends of the two springs are respectively connected to the two sliding plates.

[0010] As a preferred solution, the driving assembly includes a driving hole formed on the side of the mounting frame away from the clamping jaw. The driving hole is slidably connected with a driving plate, and one end of the driving plate is connected to the sliding plate.

[0011] As a preferred solution, one side of the driving plate close to the limiting plate has a frosted surface.

[0012] The utility model has the following beneficial effects compared with the prior art:

[0013] Through the arrangement of the mounting assembly, during the replacement process of the clamping block, by using the limiting assembly and the driving assembly, the limiting and release of the limiting of the clamping block are realized. During the whole replacement process, there is no need to use special tools, the operation is simple, and the implementation is convenient, thereby realizing the rapid replacement of the clamping block.

[0014] The following will further describe in detail the specific implementation manners of the utility model with reference to the accompanying drawings. Description of the Drawings

[0015] In the drawings:

[0016] Figure 1 is the overall structural schematic diagram of the utility model;

[0017] Figure 2 is the structural schematic diagram of the clamping block installation of the utility model;

[0018] Figure 3 is Figure 2 the enlarged view at A in;

[0019] Figure 4 is the structural schematic diagram of the limiting hole and the inclined surface of the utility model.

[0020] In the figure: 101, manipulator body; 102, slide rail; 103, clamping jaw; 104, clamping block; 201, mounting hole; 202, mounting plate; 301, mounting frame; 302, sliding plate; 303, limiting plate; 304, limiting hole; 305, inclined surface; 401, telescopic rod; 402, spring; 501, driving hole; 502, driving plate. Specific Embodiment

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only the preferred embodiments of the present invention.

[0022] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Example 1

[0024] Please refer to Figures 1 - 4 , a quick-change mechanism for a mechanical fixture in the illustration, which includes a manipulator body 101. One end of the manipulator body 101 is connected with a jaw 103 through a plurality of slide rails 102. On the opposite side of each jaw 103, there is a clamping block 104. It also includes a mounting component arranged on each jaw 103 for mounting the clamping block 104;

[0025] The mounting component includes two mounting holes 201 opened on the jaw 103. The two mounting holes 201 are slidably connected with a mounting plate 202. One end of the two mounting plates 202 is connected with the clamping block 104. The jaw 103 is provided with a limiting component for limiting the two mounting plates 202;

[0026] It should be noted here that: through the setting of the mounting component, during the replacement process of the clamping block 104, by using the limiting component and the driving component, the limiting and release of the clamping block 104 are realized. In the whole replacement process, there is no need to use special tools, the operation is simple, and the implementation is convenient, thus realizing the quick replacement of the clamping block 104.

[0027] It is worth noting that: the manipulator body 101 is a prior art, and its specific structure and working principle have been mastered by those skilled in the art, so no more details will be described here.

[0028] Please refer to Figure 2 and Figure 3, in the illustrated figure, the limiting component includes a mounting frame 301 fixedly connected to the side of the claw 103 away from the clamping block 104. The mounting frame 301 is sealed on the side away from the claw 103. Two sliding plates 302 are connected in the mounting frame 301 through a telescopic component. Limiting plates 303 are fixedly connected to the mutually remote sides of the two sliding plates 302. Limiting holes 304 are formed in the mutually close sides of the two mounting plates 202. The two limiting holes 304 are arranged to match the limiting plates 303. The mounting frame 301 is provided with a driving component for driving the two limiting plates 303;

[0029] It should be noted here that: through the setting of the limiting component, it is used to limit and fix the mounting plate 202.

[0030] Please refer to Figure 4 , a slope 305 is formed at one end of the illustrated mounting plate 202 away from the clamping block 104;

[0031] It should be noted here that: through the setting of the slope 305, when one end of the mounting plate 202 abuts against the limiting plate 303, under the mutual acting force of the slope 305 and the guiding action of the telescopic component, the limiting plate 303 will be pushed to contract into the mounting frame 301.

[0032] Please refer to Figure 2 and Figure 3 , in the illustrated figure, the telescopic component includes a telescopic rod 401 fixedly connected between the opposite inner walls of the mounting frame 301. The two sliding plates 302 are slidably connected to the two telescopic rods 401. Springs 402 are sleeved on the side walls of the two telescopic rods 401. The two ends of the two springs 402 are respectively connected to the two sliding plates 302;

[0033] It should be noted here that: through the setting of the telescopic component, it is used to guide and reset the movement of the limiting plate 303.

[0034] Working principle: When the manipulator body 101 is in use, first select chuck blocks 104 with different thicknesses according to the diameter of the workpiece to be processed. After the selection of the chuck blocks 104 is completed, make the positioning surface of the chuck block 104 parallel to the claw 103, and insert the two mounting plates 202 on one side of the chuck block 104 into the mounting holes 201. During the process of the mounting plate 202 sliding in the mounting hole 201, when one end of the mounting plate 202 abuts against the limiting plate 303, under the mutual acting force of the inclined surface 305 and the guiding action of the telescopic assembly, the limiting plate 303 will be pushed to contract into the mounting frame 301. With the continuous pushing of the chuck block 104, when the positioning surface of the chuck block 104 abuts against the claw 103, the limiting plate 303 will be aligned with the limiting hole 304. At this time, under the elastic action of the telescopic assembly, the two limiting plates 303 will be simultaneously pushed into the limiting hole 304 and abut against the bottom wall of the limiting hole 304, so as to realize the installation and fixation of the chuck block 104 by the abutting action of the two limiting plates 303;

[0035] After the installation and fixation of each chuck block 104 are completed, the manipulator body 101 can be used to grasp the workpiece. During the grasping process, the cylinder is used to drive each claw 103 to move closer to or away from each other, so as to realize the clamping and loosening of the workpiece by the chuck block 104;

[0036] When clamping workpieces of other batches, the chuck block 104 needs to be replaced. During the replacement process of the chuck block 104, the driving assembly is used to release the limit on the chuck block 104, and then the chuck block 104 can be replaced. And during the installation process of the chuck block 104, only by inserting and pushing the chuck block 104, the chuck block 104 can be automatically fixed under the action of the limiting assembly. At the same time, during the disassembly process of the chuck block 104, the driving assembly can be used to release the limit on the chuck block 104. The whole replacement process does not require the use of special tools, is simple in operation and convenient to implement, thus realizing the rapid replacement of the chuck block 104. Embodiment 2

[0037] Please refer to Figure 3 , this embodiment further illustrates Embodiment 1. The driving assembly shown in the figure includes a driving hole 501 opened on the side of the mounting frame 301 away from the claw 103. A driving plate 502 is slidably connected to the driving hole 501, and one end of the driving plate 502 is connected to the sliding plate 302;

[0038] It should be noted here that: through the setting of the driving assembly, when it is necessary to release the limit on the chuck block 104, by pushing the two driving plates 502 closer to each other, the two limiting plates 303 can be driven to move out of the limiting hole 304, so as to release the limit on the chuck block 104 and facilitate the replacement of the chuck block 104.

[0039] Please refer to Figure 2 and Figure 3 One side of the driving board 502 close to the limiting board 303 in the figure has a frosted surface;

[0040] It should be noted here that by making one side of the driving board 502 close to the limiting board 303 have a frosted surface, the friction when pushing the driving board 502 is increased.

[0041] As mentioned above, it is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A mechanical fixture quick-change mechanism, comprising: A robot body (101), one end of the robot body (101) being connected to a clamping claw (103) via a plurality of slide rails (102), and a clamping block (104) being provided on a side opposite to each of the clamping claws (103); the robot body (101) is characterized in that it further comprises: a mounting assembly provided on each of the clamping claws (103) for mounting the clamping block (104); The mounting assembly comprises two mounting holes (201) formed in the clamping claw (103), the two mounting holes (201) being slidably connected to mounting plates (202), one end of the two mounting plates (202) being connected to the clamping block (104), and the clamping claw (103) being provided with a limiting assembly for limiting the position of the two mounting plates (202).

2. A mechanical fixture quick-change mechanism according to claim 1, characterized in that: The limiting assembly comprises a mounting frame (301) fixedly connected to a side of the clamping claw (103) away from the clamping block (104); two sliding plates (302) are connected in the mounting frame (301) via a telescopic assembly; the two sliding plates (302) are fixedly connected to the limiting plate (303) on the sides away from each other; limiting holes (304) are provided on the sides of the two mounting plates (202) close to each other; the two limiting holes (304) are matched with the limiting plates (303); and the mounting frame (301) is provided with a driving assembly for driving the two limiting plates (303).

3. A mechanical fixture quick-change mechanism according to claim 2, characterized in that: An inclined surface (305) is provided at one end of the mounting plate (202) away from the clamping block (104).

4. A mechanical fixture quick-change mechanism according to claim 2, characterized in that: The telescopic assembly comprises a telescopic rod (401) fixedly connected to two inner walls of the mounting frame (301), two sliding plates (302) slidably connected to the two telescopic rods (401), side walls of the two telescopic rods (401) are sleeved with springs (402), and two ends of the two springs (402) are respectively connected to the two sliding plates (302).

5. The mechanical fixture quick-change mechanism according to claim 2, characterized in that: The driving assembly comprises a driving hole (501) opened on a side of the mounting frame (301) away from the claw (103), the driving hole (501) being slidably connected to a driving plate (502), and one end of the driving plate (502) being connected to the sliding plate (302).

6. A mechanical fixture quick-change mechanism according to claim 5, characterized in that: The driving plate (502) has a frosted surface on one side close to the limiting plate (303).

Images