Wedge block enclasping mechanism

Abstract

The utility model provides a wedge block enclasping mechanism. The wedge block enclasping mechanism comprises a frame body, a driving assembly, an enclasping assembly and a reset assembly. Two rotating rollers are rotatably arranged on the frame body in a front-back parallel manner in the horizontal direction and are used for clamping and positioning a steel ring; the driving assembly comprises a one-way telescopic mechanism and a wedge block. The one-way telescopic mechanism is used for driving the wedge block to move left and right in the horizontal direction. The enclasping assembly can move back and forth in the horizontal direction to get close to or get away from the rotating roller and is used for enclasping and positioning the rotating roller or releasing enclasping and positioning of the rotating roller; the enclasping assemblies are symmetrically arranged on the two sides of the wedge surface of the wedge block, and the wedge block drives the enclasping assemblies to be close to the rotating roller, so that enclasping and positioning of the rotating roller are achieved; the reset assembly is used for driving the enclasping assembly to be away from the rotating roller and releasing enclasping positioning. Through cooperation of the telescopic mechanism and the reset assembly, frequent clasping action of the clasping assembly on the rotating roller is completed, labor force is saved, the stability of steel ring positioning is improved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment automation, in particular to a wedge clamping mechanism. Background Art

[0002] During the centering welding of steel rings, due to the particularity of the weld, many workstations have to continue to use the method of manually positioning the steel ring on the rotating drum and cooperating with the robot to realize semi-automatic loading of the robot, that is, the rotating drum must stop rotating after the centering weld of the steel ring reaches the set position to ensure the stability of the steel ring positioning, and then ensure the accuracy of the weld position. It is laborious and time-consuming to stop the rotating drum manually, and the stability of the steel ring positioning is also poor; if conventional motor drive or two-stroke cylinder drive is used to achieve frequent clamping and resetting operations, the structure is complex and the cost is also high, and the stability of the mechanism is also poor. Utility Model Content

[0003] The utility model aims to provide a wedge clamping mechanism to solve at least one or more technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a wedge clamping mechanism, comprising: a frame, a driving assembly, a clamping assembly and a reset assembly;

[0005] Two rotating rollers are rotatably arranged on the frame in parallel at the front and rear of the frame in the horizontal direction for clamping and positioning the steel ring;

[0006] The driving assembly comprises a one-way telescopic mechanism and a wedge block, wherein the wedge block is symmetrically provided with two wedge surfaces in the front and rear directions in the horizontal direction, and the one-way telescopic mechanism is used to drive the wedge block to move left and right in the horizontal direction;

[0007] The clamping assembly can move forward and backward in the horizontal direction to approach or move away from the rotating drum, and is used to clamp and position the rotating drum or release the clamping and positioning of the rotating drum;

[0008] The clamping assembly is symmetrically arranged on both sides of the wedge surface of the wedge block, and the wedge block drives the clamping assembly to approach the rotating drum to achieve the clamping positioning of the rotating drum;

[0009] The resetting assembly is used to drive the clamping assembly away from the rotating drum, so as to release the clamping positioning of the clamping assembly on the rotating drum.

[0010] Furthermore, two ends of the rotating drum are coaxially and fixedly provided with rotating shafts, and the rotating shafts are rotatably provided on the frame.

[0011] Furthermore, the clamping assembly is provided with a slide block that can slide forward and backward along the frame, and the frame is provided with a slide groove that matches the slide block;

[0012] The side of the slider close to the wedge block is an inclined surface and abuts against the wedge surface of the wedge block, and the side of the slider away from the wedge block is fixedly provided with a friction block;

[0013] The friction block is provided with an arc-shaped groove adapted to the outer circle of the rotating shaft on one side away from the sliding block, and is used for clamping and positioning the rotating shaft;

[0014] The rotating shaft passes through the arc-shaped groove.

[0015] The provision of the arc-shaped groove increases the contact area between the friction block and the rotating shaft, improves the clamping and positioning speed of the friction block on the rotating shaft, and further improves the accuracy of the steel ring positioning.

[0016] Preferably, a top block is provided at one end of the reset assembly close to the friction block, and the top block is fixedly connected to a side of the friction block away from the slider;

[0017] One end of the top block away from the friction block is provided with two buffer rods in parallel and spaced apart in the vertical direction, and the top block can slide along the buffer rods;

[0018] The other end of the buffer rod is fixedly connected to the frame.

[0019] Furthermore, a spring is sleeved on the outer side of the buffer rod, one end of the spring is in contact with the frame body, and the other end of the spring is in contact with the top block, so as to drive the clamping assembly to move away from the rotating shaft.

[0020] Furthermore, the fixed end of the one-way telescopic mechanism is fixedly connected to the frame, and the telescopic end of the telescopic mechanism is fixedly connected to the large end of the wedge block for driving the wedge block to move left and right in the horizontal direction.

[0021] Furthermore, a guide rod is provided at the fixed end of the one-way telescopic mechanism, one end of which is fixedly connected to the wedge block for guiding the wedge block when it moves.

[0022] The setting of the guide rod improves the stability of the movement of the wedge block and the synchronization of the clamping of the clamping components on both sides.

[0023] Preferably, the frame is fixedly provided with a positioning plate for lateral positioning of the steel ring.

[0024] By adopting the above technical solution, the utility model has the following beneficial effects:

[0025] The wedge clamping mechanism provided by the utility model has the following advantages:

[0026] 1. The cooperation of the single-stroke telescopic mechanism and the reset assembly completes the frequent clamping and releasing of the rotating rollers on both sides by the clamping assembly, which does not require manual control and saves labor. At the same time, the single-stroke telescopic mechanism has high stability, which improves the stability of the steel ring positioning and also improves production efficiency.

[0027] 2. The movement of the clamping assembly does not require motor drive, and the structure of the clamping mechanism is simple, which greatly reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional diagram of a wedge clamping mechanism provided by an embodiment of the utility model without a reset component on one side;

[0030] Figure 2 for Figure 1 A in the enlarged view;

[0031] Figure 3 A top view of a wedge clamping mechanism provided in an embodiment of the utility model;

[0032] Figure 4 for Figure 3 Middle AA section view.

[0033] Reference numerals:

[0034] 1-frame; 11-slideway; 12-positioning plate; 2-driving assembly; 21-one-way telescopic cylinder; 22-wedge block; 23-push plate; 24-guide rod; 3-clamping assembly; 31-slider; 32-friction block; 321-arc groove; 4-reset assembly; 41-top block; 42-buffer rod; 43-spring; 44-fixed block; 5-rotating drum; 51-rotating shaft. DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention will be further explained below in conjunction with specific implementation methods.

[0039] like Figure 1-3 As shown, a wedge clamping mechanism provided in this embodiment includes: a frame 1, a driving assembly 2, a clamping assembly 3 and a resetting assembly 4;

[0040] Two rotating rollers 5 are rotatably arranged on the frame 1 in parallel at the front and rear of the horizontal direction for clamping and positioning the steel ring;

[0041] The driving assembly 2 includes a one-way telescopic mechanism and a wedge block 22. The wedge block 22 is symmetrically provided with two wedge surfaces in the front and rear directions in the horizontal direction. The one-way telescopic mechanism is used to drive the wedge block 22 to move left and right in the horizontal direction.

[0042] The clamping assembly 3 can move forward and backward in the horizontal direction to approach or move away from the rotating drum 5, and is used to clamp and position the rotating drum 5 or release the clamping and positioning of the rotating drum 5;

[0043] The clamping assembly 3 is symmetrically arranged on both sides of the wedge surface of the wedge block 22, and the wedge block 22 drives the clamping assembly 3 to approach the rotating drum 5 to achieve the clamping positioning of the rotating drum 5;

[0044] The resetting assembly 4 is used to drive the clamping assembly 3 away from the rotating drum 5 to release the clamping positioning of the clamping assembly 3 on the rotating drum 5 .

[0045] Two ends of the rotating drum 5 are coaxially and fixedly provided with a rotating shaft 51 , and the rotating shaft 51 is rotatably provided on the frame 1 .

[0046] like Figure 4 As shown, the clamping assembly 3 is provided with a slider 31 that can slide forward and backward along the frame 1, and the frame 1 is provided with a slide groove 11 that is adapted to the slider 31; it is used to guide the clamping assembly 3 when it moves;

[0047] The side of the slider 31 close to the wedge block 22 is an inclined surface and abuts against the wedge surface of the wedge block 22, and the side of the slider 31 away from the wedge block 22 is fixedly provided with a friction block 32;

[0048] The side of the friction block 32 away from the slider 31 is provided with an arc-shaped groove 321 adapted to the outer circle of the rotating shaft 51, which is used for holding and positioning the rotating shaft 51;

[0049] The rotating shaft 51 passes through the arc-shaped groove 321 .

[0050] In this embodiment, the friction block 32 is made of hard polyurethane, and the arc-shaped groove 321 of the friction block 32 is provided with ridges (not shown) arranged along the axial direction of the arc-shaped groove.

[0051] The provision of the arc groove 321 increases the contact area between the friction block 32 and the rotating shaft 51, and the provision of the ridge increases the friction force of the friction block 32, thereby increasing the clamping and positioning speed of the friction block 32 on the rotating shaft 51, thereby increasing the accuracy of the steel ring positioning.

[0052] A top block 41 is disposed at one end of the reset assembly 4 close to the friction block 32 , and the top block 41 is fixedly connected to a side of the friction block 32 away from the slider 31 ;

[0053] One end of the top block 41 away from the friction block 32 is parallel to and spaced apart from two buffer rods 42 in the vertical direction, and the top block 41 can slide along the buffer rods 42;

[0054] A fixing block 44 is fixedly provided at the other end of the buffer rod 42 , and the fixing block 44 is fixedly connected to the frame body 1 .

[0055] A spring 43 is sleeved on the outer side of the buffer rod 42 . One end of the spring 43 abuts against the fixing block 44 , and the other end abuts against the top block 41 , so as to drive the clamping assembly 3 to move away from the rotating shaft 51 .

[0056] The fixed end of the telescopic mechanism is fixedly connected to the frame 1, and the telescopic end of the telescopic mechanism is fixedly connected to the large end of the wedge block 22 for driving the wedge block 22 to move left and right in the horizontal direction.

[0057] The telescopic mechanism is a pneumatic cylinder, a hydraulic cylinder or an electric push rod.

[0058] In this embodiment, the telescopic mechanism is a one-way telescopic cylinder 21, the fixed end of which is fixedly arranged on the frame 1; a push plate 23 is fixedly arranged on the telescopic end of the one-way telescopic cylinder 21, and the side of the push plate 23 away from the telescopic end is fixedly connected to the wedge block 22;

[0059] A guide rod 24 is also provided at the fixed end of the one-way telescopic cylinder 21, one end of which is fixedly connected to the push plate 23 for guiding the push plate 23 when it moves, thereby improving the stability of the movement of the wedge block 22 and the synchronization of the clamping assemblies 3 on both sides.

[0060] The frame 1 is fixedly provided with a positioning plate 12 for lateral positioning of the steel ring.

[0061] Specifically, after the steel ring is placed on the rotating drum, the steel ring is rotated manually. When the centering weld on the steel ring reaches the set position, the telescopic end of the one-way telescopic cylinder 21 extends to drive the wedge block 22 to move rightward. The wedge block 22 drives the clamping components 3 on both sides to move toward the direction close to the rotating shaft 51 at the same time. At the same time, the top block 41 moves along the buffer rod 42 under the drive of the friction block 32. At this time, the spring 43 is compressed and stores energy; after the friction block 32 contacts the rotating shaft 51, the rotating shaft 51 stops rotating through friction force, thereby fixing the position of the steel ring. After the robot takes away the steel ring, the telescopic end of the one-way telescopic cylinder 21 is retracted, driving the wedge block 22 to move leftward, and the springs 43 on both sides release energy and rebound. The clamping components 3 on both sides of the wedge block 22 move away from the rotating shaft 51 under the drive of the elastic force, thereby releasing the clamping positioning of the friction block 32 on the rotating shaft 51.

[0062] The wedge clamping mechanism provided by the utility model has the following advantages:

[0063] 1. The cooperation of the single-stroke telescopic mechanism and the reset assembly completes the frequent clamping and releasing of the rotating rollers on both sides by the clamping assembly, which does not require manual control and saves labor. At the same time, the single-stroke telescopic mechanism has high stability, which improves the stability of the steel ring positioning and also improves production efficiency.

[0064] 2. The movement of the clamping assembly does not require motor drive, and the structure of the clamping mechanism is simple, which greatly reduces the production cost.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A wedge clamping mechanism, characterized in that: include: Frame, drive assembly, clamping assembly and reset assembly; Two rotating rollers are rotatably arranged on the frame in parallel at the front and rear of the frame in the horizontal direction for clamping and positioning the steel ring; The driving assembly comprises a one-way telescopic mechanism and a wedge block, wherein the wedge block is symmetrically provided with two wedge surfaces in the front and rear directions in the horizontal direction, and the one-way telescopic mechanism is used to drive the wedge block to move left and right in the horizontal direction; The clamping assembly can move forward and backward in the horizontal direction to approach or move away from the rotating drum, and is used to clamp and position the rotating drum or release the clamping and positioning of the rotating drum; The clamping assembly is symmetrically arranged on both sides of the wedge block and abuts against the wedge surface of the wedge block. The wedge block drives the clamping assembly to approach the rotating drum to achieve the clamping positioning of the rotating drum. The resetting assembly is used to drive the clamping assembly away from the rotating drum, so as to release the clamping positioning of the clamping assembly on the rotating drum.

2. The wedge clamping mechanism according to claim 1, characterized in that: The two ends of the rotating drum are coaxially and fixedly provided with a rotating shaft, and the rotating shaft is rotatably arranged on the frame.

3. The wedge clamping mechanism according to claim 2, characterized in that: The clamping assembly is provided with a slide block that can slide forward and backward along the frame, and the frame is provided with a slide groove that matches the slide block; The side of the slider close to the wedge block is an inclined surface and abuts against the wedge surface of the wedge block, and the side of the slider away from the wedge block is fixedly provided with a friction block; The friction block is provided with an arc-shaped groove adapted to the outer circle of the rotating shaft on one side away from the sliding block, and is used for clamping and positioning the rotating shaft; The rotating shaft passes through the arc-shaped groove.

4. The wedge clamping mechanism according to claim 3, characterized in that: A top block is provided at one end of the reset assembly close to the friction block, and the top block is fixedly connected to a side of the friction block away from the slider; One end of the top block away from the friction block is provided with two buffer rods in parallel and spaced apart in the vertical direction, and the top block can slide along the buffer rods; The other end of the buffer rod is fixedly connected to the frame.

5. The wedge clamping mechanism according to claim 4, characterized in that: A spring is sleeved on the outer side of the buffer rod, one end of the spring is in contact with the frame body, and the other end of the spring is in contact with the top block, so as to drive the clamping assembly to move away from the rotating shaft.

6. The wedge clamping mechanism according to claim 1, characterized in that: The fixed end of the one-way telescopic mechanism is fixedly connected to the frame, and the telescopic end of the one-way telescopic mechanism is fixedly connected to the large end of the wedge block for driving the wedge block to move left and right in the horizontal direction.

7. The wedge clamping mechanism according to claim 6, characterized in that: A guide rod is also provided at the fixed end of the one-way telescopic mechanism, one end of which is fixedly connected to the wedge block for guiding the wedge block when it moves.

8. The wedge clamping mechanism according to claim 1, characterized in that: The frame is fixedly provided with a positioning plate for lateral positioning of the steel ring.

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