CN210435786U

CN210435786U - Novel hydraulic four-claw self-centering caliper

Info

Publication number: CN210435786U
Application number: CN201921462937.5U
Authority: CN
Inventors: 周新民; 刘建彬; 闫天兴; 董月起
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-01
Anticipated expiration: 2029-09-04

Abstract

The utility model provides a novel hydraulic four-claw self-centering caliper, which comprises a T-shaped slide rail, a transition gear shaft A and a transition gear shaft B; transition gear shaft A all rotates with transition gear shaft B and inlays at calliper internal and crisscross vertical column structure from top to bottom, T type slide rail is cross structure and establishes at the top of calliper body, and the transmission piece is equipped with four groups and slidable mounting respectively on T type slide rail, still there is the detachable jack catch through the fix with screw respectively on the transmission piece. In the utility model, two pairs of clamping jaws independently or sequentially move by self-centering; the appearance is designed into a disc shape, the relative positions of the four claws are vertically and uniformly distributed, and the eccentric vibration of rotation can be reduced; the power of each pair of self-centering clamping jaws comes from the same transition shaft, and the power of each transmission shaft comes from a pair of parallel rack pistons, so that the locking force is increased; a pair of left-handed and right-handed gear screw shafts are arranged at two ends of the transition gear shaft, so that synchronous clamping and releasing of the transmission block are guaranteed.

Description

Novel hydraulic four-claw self-centering caliper

Technical Field

The utility model belongs to the technical field of calliper, more specifically say, in particular to novel hydraulic pressure four paws are from asking heart calliper.

Background

Various hydraulic clamps circulating in the market at present mostly adopt a single-cylinder single-action self-centering or non-centering mode for clamping, such as flat tongs, pressing plates and the like, and also have some eccentric or lever-type special clamps or pneumatic hydraulic clamps, but the clamps are mostly not positioned or specific, so that the clamping and positioning requirements in modern industrial production are met, aiming at the clamping characteristics of rectangular workpieces and blanks, particularly a novel self-centering hydraulic clamp required on a five-axis machining center, two-two opposite four-claw self-centering motion is required, the four-claw self-centering hydraulic clamp can be controlled independently and sequentially, meanwhile, the clamping force is adjustable, and the requirements of different relative use pretightening forces of different workpieces are met.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel hydraulic pressure four paws are from asking heart calliper to solve the hydraulic tong and adopt the single cylinder single action more and ask the heart or do not ask the heart form to press from both sides tightly, some special fixture or pneumatic hydraulic fixture of eccentric or lever class in addition, but these anchor clamps are owed location or specificity many, need a novel problem from asking the hydraulic fixture of heart.

The utility model discloses hydraulic pressure four paws are from the purpose and the efficiency of asking heart calliper, are reached by following specific technological means:

a novel hydraulic four-claw self-centering caliper comprises a T-shaped slide rail, a transition gear shaft A and a transition gear shaft B; transition gear shaft A all rotates with transition gear shaft B and inlays internally and be crisscross vertical column structure from top to bottom at calliper, the four corners department of the calliper body all is equipped with a breach, and the inboard bottom of breach still is equipped with the location fixed orifices, T type slide rail is cross structure and establishes at the top of the calliper body, and the transmission block is equipped with four groups and slidable mounting respectively on T type slide rail, still there is the detachable jack catch through the fix with screw respectively on the transmission block.

Furthermore, two ends of the transition gear shaft A are respectively and rotatably connected with a pair of left-handed and right-handed gear screw shafts A, and rack pistons are respectively meshed below gears at two ends of the transition gear shaft A.

Furthermore, two ends of the transition gear shaft B are respectively and rotatably connected with a pair of left-handed and right-handed gear screw shafts B, and rack pistons are respectively meshed below gears at two ends of the transition gear shaft B.

Further, oil cylinder holes are respectively formed in the outer sides of the two ends of the rack piston.

Furthermore, the transmission block is respectively sleeved on the gear screw shaft A and the gear screw shaft B through threaded holes.

The utility model discloses at least, include following beneficial effect:

the two pairs of clamping jaws in the utility model can independently or sequentially move by self-centering, and can be independently controlled in sequence, and simultaneously the clamping force can be adjusted, thereby meeting the requirements of different relative use pretightening forces of different workpieces; the appearance is designed into a disc shape, the relative positions of the four claws are vertically and uniformly distributed, and the eccentric vibration of rotation can be reduced; the power cylinders are symmetrically and vertically distributed in pairs, so that the space structure is more compact; the power of each pair of self-centering clamping jaws comes from the same transition shaft, and the power of each transmission shaft comes from a pair of parallel rack pistons, so that the locking force is increased; a pair of left-handed and right-handed gear screw shafts are arranged at two ends of the transition gear shaft, so that synchronous clamping and loosening of the transmission block are guaranteed, and the repeated positioning precision is high; the clamping and expanding forces on the workpiece are the same, so that the defect that the extension and retraction forces of the traditional oil cylinder are different is avoided; the clamping jaws can be freely replaced according to different requirements, the hydraulic clamp is suitable for different machine tools, concentric positioning sinking platforms are prefabricated at the bottom of the hydraulic clamp, the hydraulic clamp is convenient to be connected with automatic machine tools, and the hydraulic clamp is particularly suitable for five-axis linkage machine tools.

Secondly, by the design structure and the relevant processing technology, the product can meet the current production requirement, the production efficiency is improved, and particularly, the positioning and clamping of the workpiece or the blank in the asymmetric shape are realized, so that a novel and reliable clamp is provided for realizing intelligent manufacturing.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the side elevation structure of the present invention.

Fig. 3 is a schematic view of the internal fitting structure of the present invention.

Fig. 4 is another schematic side view of fig. 3 according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a caliper body; 101. a notch; 102. positioning the fixing hole; 103. a T-shaped slide rail; 2. a transition gear shaft A; 201. a geared screw shaft A; 3. a transition gear shaft B; 301. a geared screw shaft B; 4. a rack piston; 401. a cylinder bore; 5. a transmission block; 6. a claw is provided.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the utility model provides a novel hydraulic four-claw self-centering caliper, which comprises a T-shaped slide rail 103, a transition gear shaft A2 and a transition gear shaft B3; transition gear axle A2 all rotates to inlay in the caliper body 1 and be crisscross vertical structure from top to bottom with transition gear axle B3, the four corners department of the caliper body 1 all is equipped with a breach 101, and the inboard bottom of breach 101 still is equipped with location fixed orifices 102, T type slide rail 103 is cross structure and establishes at the top of caliper body 1, and driving block 5 is equipped with four groups and slidable mounting respectively on T type slide rail 103, still have detachable jack catch 6 through the fix with screw respectively on the driving block 5.

The two ends of the transition gear shaft A2 are respectively connected with a pair of left-handed and right-handed gear screw shafts A201 in a rotating manner, rack pistons 4 are respectively meshed below gears at two ends of the transition gear shaft A2, and when two sets of rack pistons 4 meshed at the bottom of the transition gear shaft A2 synchronously move rightwards, the gear screw shafts A201 at two ends of the transition gear shaft A2 synchronously rotate, so that two sets of transmission blocks 5 on the gear screw shafts A201 synchronously move (loosen) towards opposite directions, otherwise, the clamping action is realized.

The two ends of the transition gear shaft B3 are also respectively and rotatably connected with a pair of left-handed and right-handed gear screw shafts B301, rack pistons 4 are respectively meshed below gears at two ends of the transition gear shaft B3, and when two groups of rack pistons 4 meshed at the bottom of the transition gear shaft B3 synchronously move upwards, the gear screw shafts B301 at two ends of the transition gear shaft B3 synchronously rotate, so that two groups of transmission blocks 5 on the gear screw shafts B301 synchronously move (loosen) in opposite directions, and otherwise, the clamping action is realized.

The outer sides of the two ends of the rack piston 4 are respectively provided with an oil cylinder hole 401, hydraulic oil is injected into the oil cylinder holes through the oil cylinder holes, and the two groups of gear pistons 4 are driven to simultaneously act on one transition gear shaft to increase locking force.

The transmission block 5 is further sleeved on the gear screw shaft A201 and the gear screw shaft B301 through threaded holes respectively, the rotary power can be conveyed to the threads through the transition gear shaft A2 and the transition gear shaft B3, and then the threads are transferred to the transmission block 5 to achieve tightening and loosening actions.

The specific use mode and function of the embodiment are as follows:

the surface of the internal transmission part of the utility model is completely nitrided, the wear resistance is high, the repeated positioning precision is good, when two groups of rack pistons 4 meshed at the bottom of the transition gear shaft A2 move rightwards synchronously, the gear screw shafts A201 at the two ends of the transition gear shaft A2 rotate synchronously, so that two groups of transmission blocks 5 on the gear screw shafts A201 move (loosen) towards opposite directions synchronously, otherwise, the transmission blocks are clamped; when the two sets of rack pistons 4 engaged at the bottom of the transition gear shaft B3 move up synchronously, the gear screw shafts B301 at the two ends of the transition gear shaft B3 rotate synchronously, so that the two sets of transmission blocks 5 on the gear screw shafts B301 move (loosen) in opposite directions synchronously, otherwise, the clamping action is performed. The screw thread turning directions of the gear screw shaft A201 at the upper end of the transition gear shaft A2 and the gear screw shaft B301 at the left end of the transition gear shaft B3 are left-handed, the screw thread turning directions of the gear screw shaft A201 at the lower end of the transition gear shaft A2 and the gear screw shaft B301 at the right end of the transition gear shaft B3 are right-handed, the rotation power is transmitted to the screw thread through the transition gear shaft A2 and the transition gear shaft B3, and then the screw thread is rotated to the transmission block 5 to realize tightening and loosening actions. Wherein the transition gear axle A2 is installed and is installed on two sets of drive blocks 5 and transition gear axle B3 and install the axis that is two sets of drive blocks 5 and be vertical distribution, and these two way pneumatic cylinders divide the mountain to arrange perpendicularly again simultaneously, and double piston acts on a transition gear axle simultaneously and has increased the locking force, such design compact structure workable. In conclusion, hydraulic kinetic energy is transmitted to the peripheral transmission block 5 from the transmission block, and the transmission block 5 is provided with the clamping jaws with different shapes (according to the shape of the workpiece), so that the workpiece can be positioned and clamped.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a novel hydraulic pressure four paws are from asking heart calliper which characterized in that: the device comprises a T-shaped sliding rail (103), a transition gear shaft A (2) and a transition gear shaft B (3); transition gear shaft A (2) all rotate with transition gear shaft B (3) and inlay in the caliper body (1) and be crisscross vertical structure from top to bottom, four corners department of the caliper body (1) all is equipped with a breach (101), and the inboard bottom of breach (101) still is equipped with location fixed orifices (102), T type slide rail (103) are cross structure and establish the top at the caliper body (1), and transmission block (5) are equipped with four groups and respectively slidable mounting on T type slide rail (103), still there are detachable jack catch (6) through the fix with screw on transmission block (5) respectively.

2. The new hydraulic four-jaw self-centering caliper according to claim 1, wherein: two ends of the transition gear shaft A (2) are respectively and rotatably connected with a pair of left-handed and right-handed gear screw shafts A (201), and rack pistons (4) are respectively meshed below gears at two ends of the transition gear shaft A (2).

3. The new hydraulic four-jaw self-centering caliper according to claim 1, wherein: two ends of the transition gear shaft B (3) are respectively and rotatably connected with a pair of left-handed and right-handed gear screw shafts B (301), and rack pistons (4) are respectively meshed below gears at two ends of the transition gear shaft B (3).

4. The new hydraulic four-jaw self-centering caliper according to claim 2, wherein: and oil cylinder holes (401) are also respectively arranged on the outer sides of the two ends of the rack piston (4).

5. The new hydraulic four-jaw self-centering caliper according to claim 1, wherein: and the transmission block (5) is also sleeved on the gear screw shaft A (201) and the gear screw shaft B (301) through threaded holes respectively.