Simple variable-pitch clamping jaw

Abstract

The utility model relates to a simple variable-pitch clamping jaw which comprises an installation frame, a plurality of sets of clamping jaw assemblies linearly distributed on the installation frame and a pitch adjusting mechanism used for adjusting the intervals of the clamping jaw assemblies, the pitch adjusting mechanism comprises a driving element, and the driving element is fixed to the installation frame. One clamping jaw assembly located at the front end or the rear end of the mounting frame is fixed to the mounting frame, a support is arranged on the other clamping jaw assembly and connected with a driving element, connecting belts and limiting pieces are arranged on the clamping jaw assemblies, the multiple clamping jaw assemblies are connected in series through the connecting belts, and the limiting pieces are linearly distributed on the same straight line. Through cooperation of the driving element, the positions of the clamping jaw assemblies connected with the support can be conveniently adjusted, so that the maximum distance and the minimum distance between the multiple sets of clamping jaw assemblies are flexibly changed, the clamping flexibility and applicability are improved, the clamping jaw assemblies and the distance adjusting mechanism are conveniently maintained and repaired, and the maintenance cost and time are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automation processing technology, in particular to a simple type variable distance clamping jaw. BACKGROUND

[0002] Industrial manipulator is more and more widely used in automation production, sometimes need to complete the material gripping action in the carrying process of product, and change the interval of product. The end effector of common variable distance mechanism is generally vacuum chuck or clamping jaw cylinder, then due to the large volume of clamping jaw cylinder and the inconvenience of air pipe arrangement, the limitation of vacuum chuck makes it not applicable to the variable distance gripping of closely arranged and suitable clamping product.

[0003] The utility model discloses a variable distance clamping jaw device discloses a kind of variable distance clamping jaw device, through the mutual cooperation of servo motor, screw rod, connecting plate, distance adjusting assembly, servo motor can drive screw rod to rotate to drive connecting plate to move, connecting plate moves and drives distance adjusting assembly to move to adjust distance, to realize the variable distance of clamping jaw mechanism, but the variable distance function of the device clamping jaw relies on the accurate cooperation of servo motor, screw rod and connecting plate, structure is more complex, the assembly, debugging and maintenance difficulty of device increase. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a simple type variable distance clamping jaw to solve the problems raised in the background art.

[0005] The above-mentioned purpose of the utility model is realized by the following technical scheme: a simple type variable distance clamping jaw, comprising a mounting frame, a plurality of clamping jaw assemblies linearly distributed on the mounting frame, and a distance adjusting mechanism for adjusting the spacing between the clamping jaw assemblies. The distance adjusting mechanism includes a drive element fixed to the mounting frame. One set of clamping jaw assemblies located at the front or rear end of the mounting frame is fixed to the mounting frame. The other set of clamping jaw assemblies is provided with a support connected to the drive element. The clamping jaw assemblies are provided with a connecting belt and a limiting piece. Multiple sets of clamping jaw assemblies are connected in series through the connecting belt. The limiting pieces are linearly distributed on the same straight line.

[0006] Preferably, the length of the connecting belt between the adjacent two sets of clamping jaw assemblies is greater than the length of the limiting piece between the adjacent two sets of clamping jaw assemblies.

[0007] Preferably, the mounting frame is provided with at least two sliding rails, and the clamping jaw assemblies are slidingly installed on the sliding rails through sliding blocks.

[0008] As preferred, the clamping jaw assembly comprises a mounting plate, a clamping driving element arranged on the mounting plate, and clamping blocks arranged at two ends of the clamping driving element, the clamping driving element driving the two clamping blocks to move towards or away from each other.

[0009] As preferred, a moving plate is arranged at two ends of the clamping driving element, and the clamping blocks are fixed at lower ends of the moving plate.

[0010] As preferred, a clamping groove is arranged on an inner side end surface of the clamping block, and the clamping groove horizontally penetrates through the front and rear ends of the clamping block.

[0011] As preferred, a first fixing block and a second fixing block are respectively arranged on left and right sides of the clamping jaw assembly, the limiting element is arranged on the first fixing block, and the connecting belt is fixed on the clamping jaw assembly through the second fixing block.

[0012] The utility model discloses the beneficial effects: the utility model discloses through drive element cooperation, can conveniently adjust the position of the clamping jaw assembly connected with support, thereby flexibly changes the maximum and minimum interval between multiple sets of clamping jaw assemblies, has improved the flexibility and applicability of clamping, also is convenient for the maintenance and overhaul of clamping jaw assembly and pitch adjusting mechanism, has reduced maintenance cost and time. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model embodiment;

[0014] Figure 2 It is the structure schematic diagram of another view of the utility model embodiment;

[0015] Figure 3 It is the structure schematic diagram of the clamping jaw assembly in the utility model embodiment;

[0016] In the drawing: 1 - mounting frame, 2 - clamping jaw assembly, 201 - mounting plate, 202 - clamping driving element, 203 - moving plate, 204 - clamping block, 205 - clamping groove, 3 - slide rail, 4 - sliding block, 5 - drive element, 6 - support, 7 - limiting element, 8 - connecting belt, 9 - first fixing block, 10 - second fixing block. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] The specific embodiment is merely the explanation of the utility model, and it is not the limitation of the utility model, and the person skilled in the art can make the modification without the creative contribution according to the need after reading the present specification, but as long as in the utility model's right claim range all receive the patent law's protection.

[0019] Embodiment: asFigure 1 and Figure 2 As shown, a simple variable-pitch gripper includes a mounting frame 1, multiple sets of gripper assemblies 2 linearly distributed on the mounting frame 1, and a pitch adjustment mechanism for adjusting the spacing of the gripper assemblies 2. The number of gripper assemblies 2 is 5-8 sets, which can be set according to the requirements.

[0020] The mounting bracket 1 is provided with two or three slide rails 3, which are distributed in parallel. Each set of gripper assemblies 2 is slidably mounted on the slide rails 3 via sliders 4.

[0021] like Figure 3 As shown, the gripper assembly 2 includes a mounting plate 201, a gripping drive 202 disposed on the mounting plate 201, and gripping blocks 204 disposed at both ends of the gripping drive 202. The gripping drive 202 drives the two gripping blocks 204 to move closer or further apart. The gripping drive 202 is a double-headed cylinder, and the cylinder body is fixed on the mounting plate 201.

[0022] The clamping drive component 202 has movable plates 203 at both ends, and the clamping block 204 is fixed to the lower end of the movable plate 203.

[0023] A clamping groove 205 is provided on the inner end face of the clamping block 204, and the clamping groove 205 horizontally penetrates the front and rear ends of the clamping block 204. The cross-sectional shape of the clamping groove 205 is arc-shaped or trapezoidal.

[0024] The adjusting mechanism includes a drive element 5, which is fixed on the mounting bracket 1. The drive element 5 is a conventional single-head cylinder.

[0025] A set of gripper assemblies 2 located at the front or rear end of the mounting frame 1 is fixed on the mounting frame 1, and another set of gripper assemblies 2 is provided with a support 6. That is, the first set of gripper assemblies 2 is fixed on the mounting frame 1, and the last set of gripper assemblies 2 is provided with a support 6. The support 6 is connected to the drive element 5.

[0026] The gripper assembly 2 is provided with a connecting belt 8 and a limiting member 7. Multiple gripper assemblies 2 are connected in series by the connecting belt 8, and the length of the connecting belt 8 between two sets of gripper assemblies 2 is equal.

[0027] The limiting members 7 are linearly distributed on the same straight line. The lengths of the limiting members 7 located between the two sets of gripper assemblies 2 are equal, and the length of the connecting strip 8 located between the two adjacent sets of gripper assemblies 2 is greater than the length of the limiting members 7 located between the two adjacent sets of gripper assemblies 2.

[0028] The first fixing block 9 is fixed on the mounting plate 201 of the clamping jaw assembly 2 by bolts, and the limiting member 7 is fixed on the first fixing block 9 by screwing or bolting, and the limiting member 7 has a columnar structure.

[0029] The second fixing block 10 is fixed on the mounting plate 201 of the clamping jaw assembly 2 by bolts, and the connecting belt 8 is clamped between the second fixing block 10 and the mounting plate 201. The second fixing block 10 is provided with a positioning groove on the lower end face for placing the connecting belt 8.

[0030] When the driving element 5 pushes the support 6 to move forward, the support 6 drives the last group of clamping jaw assemblies 2 to move forward, and pulls the remaining clamping jaw assemblies 2 to move through the connecting belt 8, until the connecting belt 8 is pulled tight, at which time the distance between each group of clamping jaw assemblies 2 is maximum; when the driving element 5 pulls the support 6 to move backward, the limiting member 7 on the last group of clamping jaw assemblies 2 abuts against the limiting member 7 on the second last group of clamping jaw assemblies 2, until all the limiting members 7 abut against each other, at which time the distance between each group of clamping jaw assemblies 2 is minimum.

Claims

1. A simple type of variable distance clamping jaw comprising a mounting frame (1), a plurality of sets of clamping jaw assemblies (2) linearly distributed on the mounting frame (1), and a pitch adjusting mechanism for adjusting the spacing of the clamping jaw assemblies (2), characterized in that, The distance adjusting mechanism comprises a driving element (5) fixed on the mounting rack (1), a group of the jaw assemblies (2) fixed on the mounting rack (1) at the front end or the rear end of the mounting rack (1), a support (6) arranged on the other group of the jaw assemblies (2), the support (6) being connected with the driving element (5), a connecting belt (8) and a limiting piece (7) arranged on the jaw assembly (2), a plurality of the jaw assemblies (2) being connected in series through the connecting belt (8), and the limiting pieces (7) being linearly distributed on the same line.

2. The simple variable distance gripper jaw of claim 1, wherein: The length of the connecting belt (8) between the two adjacent groups of the jaw assemblies (2) is greater than the length of the limiting piece (7) between the two adjacent groups of the jaw assemblies (2).

3. The simple variable distance gripper jaw of claim 1, wherein: At least two slide rails (3) are arranged on the mounting rack (1), and the jaw assembly (2) is slidably installed on the slide rail (3) through a sliding block (4).

4. The simple variable distance gripper jaw of claim 1, wherein: The jaw assembly (2) comprises a mounting plate (201), a clamping driving element (202) arranged on the mounting plate (201), and a clamping block (204) arranged at both ends of the clamping driving element (202), the clamping driving element (202) driving the two clamping blocks (204) to move close to or away from each other.

5. The simple variable distance clamping jaw of claim 4, wherein: The clamping driving element (202) is provided with a moving plate (203) at both ends, and the clamping block (204) is fixed at the lower end of the moving plate (203).

6. A simple variable distance gripper jaw according to claim 4 or 5, characterised in that: A clamping groove (205) is arranged on the inner side surface of the clamping block (204), and the clamping groove (205) horizontally penetrates through the front and rear ends of the clamping block (204).

7. The simple variable distance gripper jaw of claim 1, wherein: First and second fixing blocks (9) and (10) are respectively arranged on the left and right sides of the jaw assembly (2), the limiting piece (7) is arranged on the first fixing block (9), and the connecting belt (8) is fixed on the jaw assembly (2) through the second fixing block (10).

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