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CN-122007263-A - Multiunit single-acting plane slide wedge formula withholding machine

CN122007263ACN 122007263 ACN122007263 ACN 122007263ACN-122007263-A

Abstract

The invention relates to a multi-group single-action plane inclined wedge type buckling machine, and belongs to the technical field of buckling machines. The multi-group single-acting plane inclined wedge type buckling machine is characterized by comprising a single linear reciprocating power source, an equilibrium component force device, a sliding compensation type plane inclined wedge direction changing device, a centripetal tightening and centrifugal opening working assembly and other necessary matched parts. Compared with the existing machine type, the multi-group single-action plane inclined wedge type buckling and pressing machine provided by the invention has the advantages of high precision, longer service life, more reliable work and relatively low cost.

Inventors

  • WANG SHUN

Assignees

  • 河北鑫淙机械有限公司

Dates

Publication Date
20260512
Application Date
20240314

Claims (5)

  1. 1. A multi-group single-acting plane inclined wedge buckling machine is characterized by comprising a single linear reciprocating power source, an equilibrium component force device, a sliding compensation plane inclined wedge direction changing device, a centripetal tightening and centrifugal opening working assembly and other necessary matched parts.
  2. 2. The single-acting planar wedge buckling and pressing machine according to claim 1, wherein the balanced component force device is a disc-shaped or N-shaped device with parallel two end faces, one of the two parallel end faces is a stressed end face, the other end face which is opposite to the two parallel end faces is a component force end face, the perpendicular line of the center points of the two parallel end faces of the disc-shaped or N-shaped parallel end faces is a reference central axis of a host machine, the stressed end face center point receives the linear reciprocating driving force which is from the linear reciprocating power source and is perpendicular to the stressed end face, the component force end face converts and equally divides the obtained single linear reciprocating driving force into N linear reciprocating driving component forces which are strictly parallel to the reference central axis and are strictly equal along the radial circumference of the component force end face and take the intersection point of the reference central axis and the component force end face as a center, and the component force end face transmits the converted N linear reciprocating driving component forces to the corresponding next-stage sliding compensation planar wedge diversion device which is in sliding fit with the end face respectively.
  3. 3. The multi-group single-acting plane wedge buckling machine according to claim 1, wherein the sliding compensation plane wedge direction changing device mainly comprises N sliding compensation plane wedge direction changing plates and N backrest type limiting plates; the N sliding compensation type plane inclined wedge direction changing plates and the N backrest type limiting plates are uniformly distributed in a centripetal shape or a radial shape on the circumference which is perpendicular to the reference central axis and takes a point on the reference central line as a circle center; the sliding compensation type plane inclined wedge direction changing plate is a right triangle plate, the bevel side end face of the right triangle plate is near the reference central axis side, the long right angle side end face of the right triangle plate is far the reference central axis side and is perpendicular to the component force end face of the balancing component force device, the perpendicular line of the long right angle side end face center of the right triangle plate points to the reference central axis, the short right angle side end face of the right triangle plate is jointed with the component force end face of the balancing component force device and is elastically connected with the component force end face of the balancing component force device and forms a sliding friction pair at the connecting face, the linear reciprocating driving component force from the component force end face of the balancing component force device can be transmitted, the right angle triangle shaped sliding compensation type plane inclined wedge direction changing plate can also do linear reciprocating motion, the triangle two side faces of the right angle triangle plate are jointed with the two side end faces of the prefabricated rectangular groove on the host frame plate and form the sliding friction pair so as to limit the space degree of freedom of the triangle shaped sliding compensation type plane inclined wedge direction changing plate, the sliding compensation type plane inclined wedge direction changing plate moves strictly according to the linear reciprocating motion track, the backrest type is rectangular and is in threaded connection with the host machine plate or is fixed on the host machine plate in a threaded connection mode, the device comprises a first-stage frame positioning plate, a second-stage frame positioning plate, a sliding friction pair, a straight angle side end face and a back rest type limiting plate, wherein the first-stage frame positioning plate and the second-stage frame positioning plate are pre-added on a long groove, the whole of the first-stage frame positioning plate and the second-stage frame positioning plate is round or regular polygon, the round or regular N-side planes on two sides of the first-stage frame positioning plate and the second-stage frame positioning plate are parallel to a reference radial plane, the largest-area side end face of the rectangular plate is attached to the long straight angle side end face of the right angle triangle of the sliding compensation type plane wedge direction-changing plate, the N sliding compensation type plane wedge direction-changing plate corresponds to the straight angle side end face of the back rest type limiting plate, the smallest-area side end face of the rectangular plate is parallel to the component end face of the balance type force-dividing device, and the straight angle side end face of the right angle triangle type sliding compensation type plane wedge direction-changing plate can slide along the direction component end face of the balance type force dividing device attached to the straight angle side force dividing device is far away from the reference axis direction.
  4. 4. The multi-group single-acting plane wedge buckling machine according to claim 1, wherein the centripetal tightening and centrifugal opening working assembly consists of N centripetal or radial uniformly distributed single-wing (off) center plane sliding plates and auxiliary sliding friction pairs on circumferences which are perpendicular to a reference central axis and take points on the reference central axis as circle centers; the main body of the single-wing type (off) center plane sliding plate is a right trapezoid plate, the end face of the short bottom side of the right trapezoid plate is close to the side of the sliding compensation type plane inclined wedge direction changing device and is jointed with the right end face of the secondary frame positioning plate to form a sliding friction pair, the long bottom connecting side end face of the right trapezoid plate is jointed with the left end face of the tertiary frame positioning plate to form a sliding friction pair, the two side faces of the right trapezoid plate are respectively jointed with triangular or sector friction blocks uniformly distributed and fixed between the two and three-stage frame positioning plates with large end faces parallel to a reference radial plane to form a sliding friction pair, a groove or a convex groove parallel to the end face is formed in the middle line part of the right angle side end face of the right trapezoid plate or a hole with proper diameter is drilled in the middle line part of the right angle side perpendicular to the end face to plug in a replaceable auxiliary die head corresponding to the right angle side inclined wedge direction changing device, the non-right angle side end face of the right trapezoid plate is on the reference telecentric side and is jointed with the right angle triangle reference center side of the sliding compensation type plane inclined wedge positioning plate to form a sliding friction pair, the right angle side near side of the right angle triangle wedge side of the right angle trapezoid plate is uniformly distributed and fixed between the large end face and the reference radial plane is parallel to the right angle wedge positioning plate and the right angle side inclined wedge side of the right angle wedge direction changing device is formed into a small angle wedge direction changing device, the inclined end face of the small right triangle protruding from the right trapezoid is coplanar with the inclined end face of the right trapezoid, and is also jointed with the inclined end face of the right triangle plate reference near center side of the sliding compensation type plane inclined wedge direction changing device to form a sliding friction pair, the long right angle side end face of the small right triangle protruding from the right trapezoid is perpendicular to the short bottom side end face of the right trapezoid, and the long right angle side end faces of the small right triangle protruding from the right trapezoid are respectively provided with a reset pressure spring.
  5. 5. The multi-set single-acting planar cam buckle press of any one of claims 1-4, wherein N is 3-8.

Description

Multiunit single-acting plane slide wedge formula withholding machine Technical Field The invention relates to a multi-group single-action plane inclined wedge type buckling machine, and belongs to the technical field of buckling machines. Background The buckling machine is a pipe (rod) material necking (diameter) device, is widely applied to the fields of hydraulic pressure, electric power, hardware, machinery, pipelines and the like, and essentially belongs to a special cold forging device. 1. Practical application of buckling machine The buckling machine is also called a pipe pressing machine or a pipe shrinking machine. Several typical examples of applications are presented to illustrate specific uses thereof: 1. The hydraulic rubber tube is connected with the metal joint by pressure. 2. The power industry copper wire nose (or joint) is connected with the pressure of the wire. 3. The necking (diameter) of steel pipes (or other metal pipes, bars) in the industries of pipelines, machinery, construction, hardware and the like. 2. And the working principle of the buckling and pressing machine is specifically analyzed. The working principle of the buckling and pressing machine is analyzed by taking the pressure connection of the hydraulic rubber tube and the metal joint as an example. FIG. 1 shows an assembled hydraulic hose and metal fitting that has not been swaged (locked). Wherein 101 is a hydraulic hose, 102 is a metal outer sleeve, 103 is a metal inner sleeve, and 104 is a locking nut of an oil pipe joint. If the hydraulic hose in fig. 1 is to be tightly combined with the inner and outer metal sleeves, it is necessary to: 1. a suitable pressure is applied to the metal jacket 102 in a radial direction of the metal jacket. 2. The points of application of the pressure should be distributed as evenly as possible over the radial 360 circumference of the metal jacket. At least not lower than 3 sections are evenly distributed (namely, 360-degree circumference is divided into 3 sections, each section is approximately 120 degrees), the more sections for applying radial pressure are, the more reasonable the acting force is, and the better the buckling quality is. Most of the popular models on the market are to divide the circumference into 8 sections, namely, each section is respectively buckled by 45 degrees. 3. The circumferentially uniform pressure should be strictly centripetally synchronous in the radial direction of the pipe (rod) like workpiece being processed. In summary, it is apparent that the buckling machine is a centripetal pressure mechanical device which converts mechanical (electromagnetic and hydraulic) force into a plurality of synchronous centripetal pressure mechanical devices which have the same radial direction as the buckling pipe (rod) and are uniformly distributed on the circumference. Because the main mould action only has two cyclic reciprocating actions of centripetal tightening and centrifugal opening when the buckling machine works, the mechanical action is realized, and the linear reciprocating power source is selected, so that the equipment structure can be simplified, and the existing buckling machine mostly uses a hydraulic oil cylinder or an air cylinder as power. The selection of a non-linear reciprocating power source does not perform the intended function of the buckling press, but necessarily results in a complicated, i.e. undesirable, device structure. It can also be said that the existing withholding machines (the vast majority) are mechanical devices that convert 1 linear reciprocating motion into N synchronized centripetal tightening and centrifugal opening motions. The current machine types in the market at home and abroad are various, but the large (heavy) buckling machine mainly comprises two types, namely a plurality of groups of single-action taper sleeve buckling machines and a plurality of groups of interaction plane inclined wedge buckling machines, wherein the hydraulic cylinders (or air cylinders) are mostly horizontal machines (hereinafter referred to as 1 generation buckling machines) which are horizontally arranged, and the hydraulic cylinders (or air cylinders) are mostly vertical machines (hereinafter referred to as 2 generation buckling machines) which are vertically arranged, namely the most advanced ultrathin buckling machines in the market at present. Fig. 2 is a schematic diagram of a typical prior art 1-generation buckling press. Wherein 201 is an oil cylinder barrel, 202 is an oil cylinder end cover (2 pieces in the figure), 203 is a hollow special-shaped oil cylinder rod, 204 is an oil cylinder piston, 205 is a main working module (8 circumference are uniformly distributed, only 2 vertically symmetrical parts are drawn in the figure), and 206 is an auxiliary working module, namely a quick plug-in type replaceable module head for changing different types of pipe (rod) workpieces by buckling and pressing. The existing utility model sets up the press