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CN-122008115-A - Automatic change location fastening tool for processing

CN122008115ACN 122008115 ACN122008115 ACN 122008115ACN-122008115-A

Abstract

The invention relates to the technical field of positioning and fastening fixtures, in particular to a positioning and fastening tool for automatic processing, which comprises a pressing head which is positioned above an upper plate and is inserted into a through hole of the upper plate, wherein the pressing head is relatively rotatably provided with a double-head screw rod which extends to an inner cavity of a supporting cylinder, two groups of tensioning assemblies are arranged on reverse threads at two ends of the double-head screw rod, and the tensioning assemblies synchronously realize radial outward expansion or retraction movement along with the rotation of the double-head screw rod so as to realize the tensioning or separation between the tensioning assemblies and the inner wall of the supporting cylinder.

Inventors

  • XING YIFEI
  • WANG YANTAO
  • WANG XUEMEI

Assignees

  • 烟台大学

Dates

Publication Date
20260512
Application Date
20260416

Claims (10)

  1. 1. The utility model provides an automatic change processing with location fastening tool, its characterized in that, including being located the upper plate top and with the through-hole insertion complex pressure head of upper plate, the pressure head is equipped with the through-hole, run through the double-end screw rod that extends to the support section of thick bamboo inner chamber in the through-hole, install two sets of tight subassemblies that rise on the reverse screw thread at double-end screw rod both ends, rise tight subassembly and realize radially outwards expanding or retracting the motion along with the double-end screw rod rotation is synchronous to realize rising tightly or breaking away from between tight subassembly and the support section of thick bamboo inner wall that rises.
  2. 2. The positioning and fastening tool for automatic processing according to claim 1, wherein the tensioning assembly comprises an upper special-shaped nut, an upper tensioning head, a lower special-shaped nut and a lower tensioning head, the upper special-shaped nut and the lower special-shaped nut are respectively arranged on the reverse threads at two ends of the double-head screw in a threaded manner, the upper tensioning head is sleeved outside the upper special-shaped nut and is in conical surface fit with the upper special-shaped nut, the lower tensioning head is sleeved outside the lower special-shaped nut and is in conical surface fit with the lower special-shaped nut, and the inner conical surface of the upper tensioning head and the inner conical surface of the lower tensioning head are opposite in inclination direction.
  3. 3. The positioning and fastening tool for automatic processing according to claim 2, wherein the bottom of the rising head is relatively fixedly installed with the upper base, the top of the lower rising head is relatively fixedly installed with the lower base, the upper base and the lower base are respectively sleeved and slidably installed on the double-headed screw rod, and the bottom of the upper base and the top of the lower base are relatively fixedly installed.
  4. 4. The positioning and fastening tool for automatic processing according to claim 3, wherein the two ends of the double-headed screw are respectively rotatably provided with an upper bracket and a lower bracket, a plurality of upper guide rods are arranged between the upper bracket and the upper base, a plurality of lower guide rods are arranged between the lower bracket and the lower base, and the upper guide rods and the lower guide rods respectively penetrate through the upper special-shaped nut and the lower special-shaped nut.
  5. 5. The positioning and fastening tool for automatic processing according to claim 4, wherein the upper guide rod is connected with the upper bracket through a screw, the upper guide rod is in threaded installation with the upper base, the lower guide rod is connected with the lower bracket through a screw, and the lower guide rod is in threaded installation with the lower base.
  6. 6. The positioning and fastening tool for automatic processing according to claim 5, wherein a ring table is arranged at the bottom of the pressing head, the ring table is in insertion fit with the through hole of the upper plate, and the ring table is connected with the upper bracket through screws.
  7. 7. The positioning and fastening tool for automatic processing according to claim 6, wherein the rising head and the falling head are provided in split structures, the inner side of the rising head is a conical surface, the outer side of the rising head is a cylindrical surface, the bottom side of the rising head is connected with the upper base, the inner side of the falling head is a conical surface, the outer side of the falling head is a cylindrical surface, and the top side of the falling head is connected with the lower base.
  8. 8. The positioning and fastening tool for automatic processing according to claim 7, wherein a main gear is coaxially and fixedly installed at the top of the double-ended screw, a pinion gear which is engaged with the main gear is rotatably installed at the top of the pressing head, a torsion head is coaxially installed at the pinion gear, and the torsion head is driven to rotate by an external power mechanism.
  9. 9. The positioning and fastening tool for automatic processing according to claim 8, wherein an auxiliary frame is further installed on the top of the pressing head, and a positioning block is arranged on the top of the auxiliary frame and used for positioning, clamping and grabbing by an external grabbing mechanism.
  10. 10. The automated tooling positioning and fastening tool of claim 8, wherein bearings between the upper and lower brackets and the double-ended screw shaft are rotatably mounted.

Description

Automatic change location fastening tool for processing Technical Field The invention relates to the technical field of positioning and fastening fixtures, in particular to a positioning and fastening tool for automatic processing. Background The metal box body needs a special packaging process during packaging, and the packaging steps are that after all objects in the metal box body are placed and fixed, an upper plate of the box body is covered in the last procedure, then the folding lugs on the side plates around the box body are clamped through corresponding tools, and then the folding lugs are bent to one side of the upper plate until the folding lugs are tightly attached to the surface of the upper plate, so that the upper plate and the box body are tightly pressed, as shown in the accompanying figures 1 and 2. During packaging, the fact that no relative movement or tilting between the upper plate and the box body is required to be ensured in the process of inwards bending the lugs is required, so that after the metal box body is finally packaged, the axes of the round holes on the upper plate surface of the metal box body and the axes of the supporting cylinders at the corresponding positions in the metal box body are kept coaxial within the allowable error range, and the later installation procedure of the metal box body can be smoothly carried out. One is a processing mode problem and the other is a tooling problem for realizing automatic metal box body packaging. The processing mode mainly solves the problems that in the traditional manual packaging process, an operator generally uses one hand to operate a bending tool, the other hand presses the upper plate of the metal box, the upper plate is bent by means of the manual round hole alignment tool, in order to avoid the fact that the upper plate shifts or lifts up in the bending process of each bending lug, the packaging effect is influenced, the manual operation needs to press the upper plate forcefully, the bending lug on the two side plates in the opposite direction cannot be bent in place at one time, the bending lug on the two side plates needs to be bent successively at small angles for many times, so that the upper plate is prevented from lifting or shifting under the bending force of the bending lug with one side larger, meanwhile, in the bending process, the operator needs to continuously check whether the axis between the round hole of the upper plate and the supporting cylinder deviates or not, the working efficiency is extremely low, and the final packaging quality cannot guarantee consistency, so that the final packaging effect is influenced; the second problem is mainly that the bottleneck problem that the manual packaging efficiency of the metal box body is low and the packaging quality cannot be ensured exists, so that a mechanical automation operation mode is necessary to replace manual operation, the key of the mechanical automation operation is that the upper plate of the metal box body needs to be positioned and fixed before bending the lug, so that the quality and effect of the mechanical automation operation can be ensured, the metal box body has various external specifications, especially the angles of the side plates relative to the bottom plate are different, the specification reaches hundreds of types, the outer surface of the metal box body needs to be smooth, no special supporting point exists, corresponding fixture clamps need to be designed for realizing the box body transportation among the working procedures of the automatic processing operation, and the universal fixture clamps are difficult to be suitable for hundreds of types of box bodies due to the irregular appearance and the lack of effective force points of the metal box body, the special fixture is manufactured, the fixture quantity is large, the manufacturing cost is high, and the sufficient fixture placement sites are lacked, so that the metal box body can only be manually packaged at present. The prior art discloses a quick-release type rotor core lamination expansion clamp, the utility model patent application with the bulletin number of CN223699064U comprises a sleeve, a frustum compression block is arranged in an inclined deformation cavity, a threaded rod is fixedly arranged on the frustum compression block, a gasket and a rotating block are sequentially arranged above an upper opening of the threaded rod, a spring is sleeved between the upper opening of the threaded rod and the frustum compression block, a return groove extends along the length direction of the threaded rod, an internal threaded hole matched with an external thread is arranged in the rotating block, an arc return surface is arranged in the internal threaded hole, the central angle of each arc return surface is smaller than or equal to the central angle of the return groove, the sum of the central angles of adjacent arc return surfaces is larger than the central angle of the return g