A saw beam position detecting mechanism capable of indicating a change in saw beam position

Abstract

The application discloses a saw beam position detection mechanism capable of indicating position change of a saw beam. The saw beam is arranged on a machine table. A connecting bridge is arranged between the saw beam and the machine table and is provided with two parts. The two parts of the connecting bridge span the saw beam. At least one of the two parts of the connecting bridge is provided with a roller guide rail assembly matched with the machine table. The roller guide rail assembly comprises rollers arranged in the connecting bridge and guide rails arranged on the machine table. The outer side of one part of the connecting bridge is provided with a centering indication mechanism. The centering indication mechanism comprises an indication rod rotatably arranged on the machine table. A connecting rod is fixedly arranged on the connecting bridge. The outer end of the connecting rod is provided with a positioning ring rotatably arranged with the connecting rod. The positioning ring is sleeved on the indication rod. A pressure sensor for detecting the pressure between the indication rod and the positioning ring is arranged in the positioning ring. The application has the advantages that the position of the saw beam can be detected, the deformation of the saw beam can be adapted to the movement of the saw beam, the vertical feedback detection is realized through the pressure, and the sudden change of the position of the saw beam is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saw beam position detection, and in particular to a saw beam position detection mechanism capable of indicating saw beam position change. BACKGROUND

[0002] A band saw machine generally comprises a saw beam and a saw band arranged on the saw beam, a driving mechanism and a pressing mechanism arranged in the saw beam to cooperate with the saw band, the driving mechanism drives the saw band to complete sawing, and the saw beam is generally arranged as a sliding mechanism capable of walking to match different working environments and perform adjustable cutting at different positions. For example, a movable stroke limiting device of a large vertical band saw machine disclosed in Chinese Patent Document CN203992633U authorized on December 10, 2014, comprises a vertical band saw cutting arch frame installed on a walking track, a stroke switch is installed on the vertical band saw cutting arch frame, the inner side of the walking track is a vertical band saw machine frame, a stroke switch end limit is arranged at one end of the vertical band saw machine frame, a C-shaped support is installed on the vertical band saw machine frame, a vertical limiting rod is installed at the upper end of the C-shaped support, and the top end of the limiting rod is higher than the position of the stroke switch.

[0003] In the application, the horizontal walking of the support, i.e. the saw beam, adopts the form of two railway guide rails, i.e. the rollers are arranged on the guide rails, this mode has the problems of poor assembly precision and poor reliability of the saw beam walking to the position, and in the walking process, the position of the saw beam is deviated due to the lack of limiting between the guide rails and the rollers, i.e. the existence of the gap, which affects the cutting precision and reliability of the saw band. SUMMARY

[0004] Based on the above problems of the prior art, the present application provides a saw beam position detection mechanism capable of indicating saw beam position change, which can detect the position of the saw beam, adapt to the deformation of the saw beam movement, and avoid the sudden change of the position of the saw beam through vertical pressure feedback detection.

[0005] Another object of the present application is to realize the automatic adjustment of the centering of the saw beam.

[0006] In order to achieve the above object, the present application adopts the following technical scheme.

[0007] The application discloses a saw beam position detection mechanism capable of indicating saw beam position change, wherein the saw beam is arranged on a machine table, connecting bridges are arranged between the saw beam and the machine table and are arranged in two positions, the two connecting bridges cross the saw beam, at least one of the two connecting bridges is provided with a roller guide rail assembly matched with the machine table, the roller guide rail assembly comprises rollers arranged in the connecting bridges and guide rails arranged on the machine table, the outer side of one of the connecting bridges is provided with a centering indication mechanism, the centering indication mechanism comprises an indication rod rotatably arranged on the machine table, a connecting rod is fixedly arranged on the connecting bridge, the outer end of the connecting rod is provided with a positioning ring rotatably arranged with the connecting rod, the positioning ring is sleeved on the indication rod, and a pressure sensor for detecting the pressure between the indication rod and the positioning ring is arranged in the positioning ring.

[0008] The roller guide rail assembly has the advantages of convenient assembly and is a commonly used guide scheme in the prior art, the pressure between the indication rod and the positioning ring is monitored through the arrangement of the centering indication mechanism, the value of the pressure sensor is increased when the saw beam deviates from the position, and the deviation can be quickly monitored; the limited walking of the saw beam has the following situations: 1, the position of the saw beam deviates due to long-time operation; 2, the position of the track suddenly changes or is blocked due to waste on the track; 3, the machine table is deformed at the corresponding position of the track due to long-time use; for the first situation, the indication rod and the pressure sensor can continuously monitor the pressure, the value of the pressure sensor is fed back, the indication rod is deformed under the action of the positioning ring, and the value of the pressure sensor is maintained in a controllable range; for the second situation, the blockage of the track causes resistance on the track, and the influence on the positioning ring is small, so when the value of the pressure sensor does not change and the track is blocked, the track can be cleaned for maintenance; for the third situation, the machine is blocked after the pressure sensor detects a transient and large value, the indication rod is also deformed, and the machine table can be judged to have a problem and needs to be maintained; the walking pressure of the saw beam is monitored through the application, the position change of the saw beam can be indicated, and the maintenance efficiency of the saw beam walking mechanism is greatly improved.

[0009] Preferably, a spiral groove is arranged on the indication rod, a positioning ball matched with the spiral groove is arranged in the positioning ring, and the pressure sensor is arranged in cooperation with the positioning ball. When the positioning ring slides relative to the indication rod, the indication rod is spirally rotated, the reliability of the pressure sensor is improved, and the service life of the indication rod is prolonged.

[0010] Preferably, a ball seat is arranged on the machine table, a ball shell is arranged in the ball seat, lubricating balls matched with the ball shell are arranged on the inner circumferential surface of the ball seat, and a bearing set connected with the indication rod is arranged in the ball shell. The rotary arrangement of the ball shell in the ball seat realizes universal rotation of the end portion of the indication rod, so that the indication rod can still spirally rotate under the action of the positioning ring even if the indication rod is elastically deformed due to the pressure of the saw beam and the positioning ring, and the reliability of the pressure sensor is ensured.

[0011] Preferably, rollers are provided at both ends of the connecting bridge of the roller guide rail assembly. The cross-sectional shape of the rail is "I"-shaped, and the width of the upper end of the rail is between 1 / 2 and 2 / 3 of the height of the roller. The assembly precision requirements for the roller and rail are low, and the assembly is convenient and reliable. The dimensional constraints between the rail and the roller ensure that the pressure is not too high and thus the friction is not too great, while also ensuring the reliability of the rail's supporting function.

[0012] Preferably, the connecting bridge is a downward-opening "C"-shaped steel structure, with the rollers positioned inside the opening of the connecting bridge, their rotation axis perpendicular to the axis of the track. This conceals the rollers within the connecting bridge, preventing dust from entering and extending their service life.

[0013] Preferably, in the two connecting bridges, one is equipped with a roller guide rail assembly, and the other with a linear guide rail assembly. The linear guide rail assembly includes a linear guide rail with a relative sliding fit and a self-aligning slider. The linear guide rail assembly on one connecting bridge of the saw beam provides automatic self-alignment, which improves the lateral accuracy of the saw beam, the accuracy of its movement, and its reliability without significantly increasing assembly difficulty.

[0014] Preferably, the lower sides of both ends of the connecting bridge connecting the linear guide rail assembly are provided with self-aligning sliders, and the upper sides of the self-aligning sliders are fixed with connecting plates that are installed with the connecting bridges. The connecting plates can realize the height control between the linear guide rail assembly and the corresponding connecting bridges, so that the upper heights of the two connecting bridges are equal, which facilitates the installation of the saw beam and ensures the stability of the saw beam.

[0015] Preferably, the connecting bridge of the roller guide rail assembly is equipped with a self-aligning indicator mechanism. The position of the connecting bridge of the roller guide rail assembly is prone to shifting; therefore, the self-aligning indicator mechanism can assist in limiting the position of the connecting bridge connected to the roller guide rail assembly, improving the stability of the saw beam installation.

[0016] Preferably, both connecting bridges are equipped with roller guide rail assemblies. Assembly is convenient, and the lateral position of the saw beam is controlled with the aid of a self-aligning indicator mechanism, resulting in high installation efficiency.

[0017] The beneficial effects of this invention are: it can detect the position of the saw beam, adapt to the deformation caused by the movement of the saw beam, and avoid sudden changes in the position of the saw beam through vertical pressure feedback detection; it facilitates the maintenance of the saw beam and realizes automatic centering adjustment of the saw beam. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0019] Figure 2is the structural schematic diagram of the first embodiment of the application on the machine table.

[0020] Figure 3 is Figure 2 the enlarged schematic diagram of I in the middle.

[0021] Figure 4 is Figure 2 the enlarged schematic diagram of II in the middle.

[0022] Figure 5 is the internal structure connection schematic diagram of the positioning ring of the application.

[0023] Figure 6 is the internal structure schematic diagram of the ball seat in the application.

[0024] Figure 7 is the structural schematic diagram of the second embodiment of the application.

[0025] In the figure: machine table 1, centering indicating mechanism 2, saw beam 3, connecting bridge beam 4, roller guide rail assembly 5, roller 6, track 7, linear guide rail assembly 9, linear guide rail 10, centering sliding block 11, connecting plate 12, positioning ring 13, connecting section 131, positioning rod 14, ladder hole 141, indicating rod 15, spiral groove 16, positioning ball 17, pressure sensor 18, ball seat 24, ball shell 25. DETAILED DESCRIPTION

[0026] The application will be further described below in combination with the specific embodiments and the accompanying drawings.

[0027] Embodiment 1

[0028] As Figures 1 to 6As shown, a saw beam position detection mechanism that can indicate changes in the saw beam position is disclosed. The saw beam 3 is mounted on a machine base 1. A connecting bridge 4 is slidably provided between the saw beam 3 and the machine base 1. There are two connecting bridges 4, which span the saw beam 3. One of the connecting bridges 4 is equipped with a roller guide rail assembly 5, and the other is equipped with a linear guide rail assembly 9. The linear guide rail assembly 9 includes a linear guide rail 10 and a self-aligning slider 11 that are in relative sliding fit. Self-aligning sliders 11 are respectively provided on the lower sides of both ends of the connecting bridge 4 connecting the linear guide rail assembly 9. A connecting plate 12 that is installed on the upper side of the self-aligning slider 11 is fixedly provided. The roller guide rail assembly 5 includes a roller 6 disposed in the connecting bridge 4 and a guide rail disposed on the machine base 1. A self-aligning indicator mechanism 2 is provided on the outer side of one of the connecting bridges 4, specifically, a self-aligning indicator mechanism 2 is provided on the connecting bridge 4 where the roller guide rail assembly 5 is disposed. Rollers 6 are provided at both ends of the connecting bridge 4 connecting the roller guide rail assembly 5. The cross-sectional shape of the track 7 is "I" shaped, and the width of the upper end of the track 7 is between 1 / 2 and 2 / 3 of the height of the roller 6. The connecting bridge 4 is a downward-opening "C" shaped steel structure, and the roller 6 is set in the opening of the connecting bridge 4. The rotation axis of the roller 6 is perpendicular to the axis of the track 7.

[0029] The self-aligning indicator mechanism 2 includes an indicator rod 15 rotatably mounted on the machine base 1, a connecting rod fixedly mounted on the connecting bridge 4, and a positioning ring 13 rotatably mounted on the outer end of the connecting rod. The positioning ring 13 is sleeved on the indicator rod 15, and a pressure sensor 18 for detecting the pressure between the indicator rod 15 and the positioning ring 13 is installed inside the positioning ring 13. The indicator rod 15 has a spiral groove 16, and the positioning ring 13 has positioning balls 17 that cooperate with the spiral groove 16. The pressure sensor 18 is also installed in conjunction with the positioning balls 17. The indicator rod 15 is cylindrical, and the spiral groove 16 has three spiral grooves arranged in a circumferential array around the axis of the indicator rod 15. The spiral groove 16 is a transmission thread and cannot self-lock; it will rotate when subjected to axial force. There are three positioning balls 17, which respectively cooperate with the three spiral grooves 16. The inner circumference of the positioning ring 13 has an open ball groove, and the positioning balls 17 are placed in the ball groove, with a portion of the positioning balls 17 extending out of the opening of the ball groove to cooperate with the spiral groove 16. A connecting section 131 is fixedly connected to the outer periphery of the positioning ring 13. A positioning rod 14 is provided on the connecting bridge 4. A stepped hole 141 is provided inside the outer end of the positioning rod 14. The connecting section 131 is in the shape of a stepped shaft. The connecting section 131 is rotatably connected to the stepped hole 141 through a bearing assembly.

[0030] The machine base 1 is equipped with a ball seat 24, inside which is a ball shell 25. Lubricating beads that mate with the ball shell 25 are located on the inner circumference of the ball seat 24. A bearing assembly connected to the indicator rod 15 is located inside the ball shell 25. The outer shape of the ball seat 24 is cuboid, and its outer circumference is spherical. An "I"-shaped mounting hole is provided inside the ball seat 24. Bearings are installed at both ends of the ball seat 24. The end of the indicator rod 15 is rotatably connected to the ball seat 24 via the bearings. The ball seat 24 has a two-half spliced ​​structure, with the splicing surface perpendicular to the axis of the indicator rod 15. The two halves of the ball seat 24 are fixed together with bolts, facilitating the placement of the internal lubricating beads.

[0031] Example 2

[0032] like Figure 7 As shown, a saw beam 3 position detection mechanism that can indicate the change in the position of the saw beam 3, the only difference between Embodiment 2 and Embodiment 1 is that: both connecting bridges 4 are equipped with roller guide rail assemblies 5.

[0033] The limited movement of the saw beam 3 can be caused by the following situations: 1. Long-term operation causes the saw beam 3 to shift position; 2. Waste debris on the track 7 causes sudden changes in the position of the track 7 or jamming; 3. The machine 1 experiences crushing deformation at the corresponding position of the track 7 due to long-term use. In the first case, the indicator rod 15, in conjunction with the pressure sensor 18, can maintain continuous monitoring and provide feedback on the value of the pressure sensor 18. The indicator rod 15 undergoes adaptive deformation under the action of the positioning ring 13, and the value of the pressure sensor 18 remains within a controllable range. In the second case, the jamming of the track 7 causes resistance to exist on the track 7, which has a relatively small impact on the positioning ring 13. Therefore, in the case where the value of the pressure sensor 18 does not change suddenly, but the track 7 is jammed, maintenance can be performed by cleaning the track 7. In the third case, the machine jams after the pressure sensor 18 detects a sudden and extremely large value, and the indicator rod 15 also shows a large deformation. This can be identified as a problem with the machine 1, requiring corresponding maintenance. By monitoring the movement pressure of the saw beam 3 through this application, the position of the saw beam 3 can be indicated, which greatly improves the maintenance efficiency of the saw beam 3 movement mechanism. This application can detect the position of the saw beam 3, adapt to the deformation caused by the movement of the saw beam 3, and avoid sudden changes in the position of the saw beam 3 through vertical pressure feedback detection. The self-aligning indicator mechanism 2 can provide auxiliary limiting for the connecting bridge 4 connected to the roller guide rail assembly 5, thereby improving the stability of the saw beam 3 during installation.

Claims

1. A saw beam position detection mechanism capable of indicating changes in the position of a saw beam, wherein the saw beam is mounted on a machine platform, and a connecting bridge is slidably provided between the saw beam and the machine platform, the connecting bridge having two points, the two connecting bridges bridging the saw beam, characterized in that... At least one of the two connecting bridges is provided with a roller guide rail assembly that cooperates with the machine. The roller guide rail assembly includes rollers installed in the connecting bridge and guide rails installed on the machine. One of the connecting bridges is provided with a self-aligning indicator mechanism on its outer side. The self-aligning indicator mechanism includes an indicator rod that is rotatably installed on the machine. A connecting rod is fixedly installed on the connecting bridge. The outer end of the connecting rod is provided with a positioning ring that is rotatably installed with the connecting rod. The positioning ring is sleeved on the indicator rod. A pressure sensor is provided inside the positioning ring for detecting the pressure between the indicator rod and the positioning ring. The indicator rod is provided with a spiral groove, and the positioning ring is provided with a positioning ball that matches the spiral groove. The pressure sensor is set in conjunction with the positioning ball. The machine base is provided with a ball seat, and the ball seat is provided with a ball shell. The inner circumference of the ball seat is provided with a lubricating ball that matches the ball shell. The ball shell is provided with a bearing assembly that connects to the indicator rod.

2. A saw beam position detecting mechanism capable of indicating a change in the position of a saw beam according to claim 1, characterized in that, The connecting bridge connecting the roller guide rail assembly has rollers at both ends. The cross-sectional shape of the guide rail is "I" shaped, and the width of the upper end of the guide rail is between 1 / 2 and 2 / 3 of the height of the roller.

3. A saw beam position detecting mechanism capable of indicating a change in the position of a saw beam according to claim 2, characterized in that, The connecting bridge is a C-shaped steel structure with the opening facing downwards. The rollers are installed inside the opening of the connecting bridge, and the rotation axis of the rollers is perpendicular to the axis of the guide rail.

4. The saw beam position detecting mechanism capable of indicating a change in the position of the saw beam according to claim 1 or 2, characterized in that, Of the two connecting bridges, one is equipped with a roller guide rail assembly, and the other is equipped with a linear guide rail assembly. The linear guide rail assembly includes a linear guide rail and a self-aligning slider that slide relative to each other.

5. The saw blade position detecting mechanism capable of indicating a change in the position of the saw blade according to claim 4, wherein The lower sides of the connecting bridge connecting the linear guide rail assembly are respectively provided with self-aligning sliders, and the upper side of the self-aligning sliders is fixedly provided with connecting plates that are installed with the connecting bridge.

6. A saw beam position detecting mechanism capable of indicating a change in the position of a saw beam according to claim 4 or 5, characterized in that The connecting bridge of the roller guide rail assembly is equipped with a self-aligning indicator mechanism.

7. The saw beam position detecting mechanism capable of indicating a change in the position of the saw beam according to claim 1 or 2, characterized in that, Both connecting bridges are equipped with roller guide rail assemblies.

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