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CN-121973060-A - Positioning and supporting device for grinding linear guide rail

CN121973060ACN 121973060 ACN121973060 ACN 121973060ACN-121973060-A

Abstract

The invention relates to a positioning and supporting device for grinding a linear guide rail, and belongs to the technical field of linear guide rail grinding machines. The positioning and supporting device for grinding the linear guide rail comprises a linear guide rail grinding machine, wherein a clamping base and a controller are fixedly connected to a workbench of the linear guide rail grinding machine, uniformly distributed mounting grooves are formed in the top of the clamping base, a height adjusting mechanism is arranged in each mounting groove, the height adjusting mechanism comprises a thread seat, the thread seat is fixedly connected to the inside of each mounting groove, thermoplastic resin in the height adjusting mechanism is tightly combined with a heat conducting pipe after being cooled and solidified to form a second rigid supporting structure except for threaded connection, the vertical bearing capacity and the overall rigidity of the height adjusting seat are remarkably improved, double stable support is provided for the linear guide rail, and accordingly long-term stable positioning accuracy and machining quality in the grinding process are ensured.

Inventors

  • LIU KEQIANG
  • XU ANHUA

Assignees

  • 普耐思精密数控科技(苏州)有限公司

Dates

Publication Date
20260505
Application Date
20260204

Claims (10)

  1. 1. The positioning and supporting device for grinding the linear guide rail comprises a linear guide rail grinding machine (100), wherein a clamping base (200) and a controller (300) are fixedly connected to a workbench of the linear guide rail grinding machine (100), and the positioning and supporting device is characterized in that uniformly distributed mounting grooves (210) are formed in the top of the clamping base (200), and a height adjusting mechanism (400) is arranged in each mounting groove (210); The height adjusting mechanism (400) comprises a threaded seat (410), the threaded seat (410) is fixedly connected to the inside of the mounting groove (210), a height adjusting bolt (420) is connected to the inner side of the threaded seat (410) in a threaded mode, the head of the height adjusting bolt (420) is rotationally connected with the height adjusting seat (430), a guide cavity (411) is formed in the top of the threaded seat (410), a heat conducting pipe (440) fixedly connected with the height adjusting seat (430) is connected to the inside of the guide cavity (411) in a sliding mode, an electric heating pipe (450) is installed in the inside of the heat conducting pipe (440) in an embedded mode, and thermoplastic resin (460) in contact with the heat conducting pipe (440) is filled in the inside of the guide cavity (411).
  2. 2. The positioning and supporting device for grinding of linear guide rail according to claim 1, characterized in that a high temperature resistant spring (470) is provided between the guide chamber (411) and the heat conducting pipe (440), and the high temperature resistant spring (470) is provided inside the thermoplastic resin (460).
  3. 3. The positioning and supporting device for grinding of linear guide rails according to claim 2, wherein the number of the high temperature resistant springs (470) is two, one of the high temperature resistant springs (470) is arranged on the inner side of the other high temperature resistant spring (470), and the axial lines of the two high temperature resistant springs (470) and the heat conducting tube (440) are coincident with the same vertical line.
  4. 4. A positioning and supporting device for grinding a linear guide rail according to claim 3, wherein the heat conducting tube (440) is provided with annular grooves (441) on both inner and outer sides thereof, the tops of the two high temperature resistant springs (470) respectively penetrate into the adjacent annular grooves (441), and the high temperature resistant springs (470) are always in a compressed state.
  5. 5. The positioning and supporting device for grinding linear guide rail according to claim 4, wherein the heat conducting pipe (440) is provided with a guiding groove (442) on both inner and outer sides, and the guiding groove (442) is communicated with the adjacent ring groove (441).
  6. 6. The positioning and supporting device for grinding linear guide rail according to claim 5, wherein the guide grooves (442) are in a grid shape as a whole, and the guide grooves (442) are disposed at positions where the heat conductive pipe (440) does not contact with the guide chamber (411).
  7. 7. The positioning and supporting device for grinding of linear guide rail according to claim 6, characterized in that the partial cut-out shape of the guide groove (442) is an X-shape, and the horizontal section of the guide groove (442) is an isosceles triangle.
  8. 8. The positioning and supporting device for grinding of linear guide rail according to claim 1, wherein the heat conducting pipe (440) and the height adjusting bolt (420) are staggered, and the contact part of the height adjusting seat (430) and the mounting groove (210) is rectangular.
  9. 9. The positioning and supporting device for grinding of linear guide rail according to claim 1, characterized in that the controller (300) is connected with the electric heating tube (450) by a wire, which is a high temperature resistant insulated wire.
  10. 10. The positioning and supporting device for grinding of linear guide rail according to claim 1, wherein the electric heating pipe (450) is provided inside the heat conducting pipe (440) in a partial shape of a double strand spiral, and the heat conducting pipe (440) is a beryllium bronze material member.

Description

Positioning and supporting device for grinding linear guide rail Technical Field The invention relates to the technical field of linear rail grinding machines, in particular to a positioning and supporting device for grinding a linear guide rail. Background In the precise grinding process of the linear guide rail, a numerical control linear guide rail grinding machine is core processing equipment. The special numerical control system is specially designed for forming the rollaway nest and the side face of the grinding guide rail with high precision, and can stably realize the processing precision and the excellent surface quality by virtue of a special numerical control system and a high-rigidity structure. In order to meet the processing requirement of the ultra-long guide rail, the modern linear rail grinding machine generally adopts an integrated long hydrostatic guide rail or a steel inlaid guide rail as a motion reference of the machine tool, and is installed and leveled through an adjustable positioning support array arranged at the bottom, so as to construct a stable high-precision foundation. Currently, a single positioning and supporting structure is usually composed of a fixed seat, a locking bolt, an adjusting block and a high-precision bolt for adjustment, wherein a user firstly fixes the fixed seat at a corresponding position of a machine tool through the locking bolt, then adjusts the adjusting block to a corresponding height through the high-precision bolt according to requirements, then presses a guide rail on the adjusting block and fixes the guide rail at the corresponding position of the machine tool. In the actual running process, external forces such as spindle grinding vibration and reciprocating inertial force act on the high-precision bolt, so that the probability of loosening and rotating the high-precision bolt can be increased, the accuracy of the guide rail can be damaged by unexpected rotation, and the guide rail is difficult to guarantee stable and high-accuracy guiding operation. Disclosure of Invention Accordingly, it is necessary to provide a positioning and supporting device for grinding a linear guide rail, which solves the problem that the conventional positioning and supporting device with a height fine adjustment function is easily interfered by external factors and affects the processing precision of the guide rail. The utility model provides a location supporting arrangement for linear guide grinding, includes the linear guide grinding machine, fixedly connected with centre gripping base and controller on the workstation of linear guide grinding machine, evenly distributed's mounting groove has been seted up at the top of centre gripping base, the internally mounted of mounting groove has height-adjusting mechanism. In one embodiment, the height-adjusting mechanism comprises a thread seat, the thread seat is fixedly connected to the inside of the mounting groove, an inner side thread of the thread seat is connected with a height-adjusting bolt, the head of the height-adjusting bolt is rotationally connected with the height-adjusting seat, a guide cavity is formed in the top of the thread seat, a heat conducting pipe fixedly connected with the height-adjusting seat is slidingly connected to the inside of the guide cavity, an electric heating pipe is embedded in the heat conducting pipe, and thermoplastic resin in contact with the heat conducting pipe is filled in the guide cavity. In one embodiment, a high temperature resistant spring is arranged between the guide cavity and the heat conducting pipe, and the high temperature resistant spring is arranged inside the thermoplastic resin. In one embodiment, the number of the high temperature resistant springs is two, one high temperature resistant spring is arranged on the inner side of the other high temperature resistant spring, and the axial leads of the two high temperature resistant springs and the heat conducting pipe are overlapped on the same vertical line. In one embodiment, the inner side and the outer side of the heat conducting pipe are both provided with annular grooves, the tops of the two high-temperature-resistant springs respectively penetrate through the inner parts of the adjacent annular grooves, and the high-temperature-resistant springs are always in a compressed state. In one embodiment, the inner side and the outer side of the heat conducting pipe are both provided with diversion trenches, and the diversion trenches are communicated with the adjacent ring grooves. In one embodiment, the whole shape of the diversion trench is a grid shape, and the diversion trench is arranged at a position where the heat conduction pipe is not contacted with the guiding cavity. In one embodiment, the partial cut-out shape of the diversion trench is an X shape, and the horizontal section of the diversion trench is an isosceles triangle. In one embodiment, the heat conduction pipe and the height adjusting bolt are stag