A gantry milling machine beam unloading mechanism

Abstract

The utility model relates to the technical field of milling machine beam, concretely is a kind of gantry milling machine beam unloading mechanism, including beam assembly, the beam pressure enhancement assembly being installed in beam assembly;The beam assembly includes two load-bearing ends, and two beam plates are installed in the inside of two load-bearing ends, two enhancement pad pieces are installed in the outside of two beam plates, two supporting plates are installed in the inside of two load-bearing ends and two unloading pad pieces are arranged in the inside of two enhancement pad pieces. By setting the existing whole beam box structure as two-stage pressure relief beam assembly and beam pressure enhancement assembly, the inherent platform of stable horizontal movement is provided to milling cutter module using beam assembly, and the force of milling cutter module is transferred to beam pressure enhancement assembly, and finally the force borne on beam pressure enhancement assembly will be transferred to the column of machine tool along two load-bearing ends, while not causing the deformation of beam assembly, the stability of milling cutter module movement can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of milling machine beam technology, specifically a gantry milling machine beam unloading mechanism. Background Technology

[0002] The crossbeam of a CNC machine tool is mainly used to mount the spindle, providing a stable support platform for the spindle and ensuring its stable and precise operation. At the same time, it can also provide an effective lateral support for the milling cutter module.

[0003] Currently, the crossbeam unloading mechanism of gantry milling machines mainly includes two types: hydraulically driven roller system and ball screw. However, both of these methods increase the overall counterweight of the crossbeam, thereby increasing the load on the machine tool column. Although the two unloading methods distribute the force of the milling cutter module to the entire crossbeam and then transfer it to the column, which can reduce the load to a certain extent, the part of the crossbeam that supports the milling cutter module will deform over time, thus causing changes in the accuracy of the crossbeam.

[0004] In view of this, a gantry milling machine beam unloading mechanism was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A gantry milling machine crossbeam unloading mechanism includes a crossbeam assembly and a beam pressure reinforcing assembly installed within the crossbeam assembly. The crossbeam assembly includes two load-bearing ends, with two beam plates installed on the inner sides of the two load-bearing ends, two reinforcing pads installed on the outer sides of the two beam plates, two support plates installed on the inner sides of the two load-bearing ends, and two unloading pads disposed on the inner sides of the two reinforcing pads. The beam pressure reinforcing assembly includes two first pads disposed on the outer side of one load-bearing end and two second pads disposed on the outer side of the other load-bearing end. A symmetrically distributed main support rod and a secondary support rod are installed between the first pads and the second pads, and a stabilizing core pad is disposed in the middle of the main support rod and the secondary support rod. A first track bar is installed on the outer side of the main support rod, a second track bar is installed on the outer side of the secondary support rod, a track pad is installed on the outer side of the stabilizing core pad, and the unloading pads are adapted to be inserted into the inner sides of the first track bar and the second track bar.

[0008] In a preferred embodiment, the present invention may be further configured such that: the crossbeam assembly further includes a base fixedly installed inside one of the load-bearing ends, a hydraulic component fixedly installed inside the base, and an inner support end and a clamp plate installed on the hydraulic component;

[0009] Two symmetrically distributed tie rods are fixedly installed at both ends of the clamp, and the two ends of the tie rods are adapted to extend through the outside of the two load-bearing ends.

[0010] In a preferred embodiment, the present invention can be further configured such that: a first column head is fixedly installed on the inner side of the pallet, a second column head is fixedly installed on the unloading pad, and a reinforcing spring connects the first column head and the second column head.

[0011] In a preferred embodiment, the present invention can be further configured such that the inner support end has an overall frustum-shaped structure, and the inner support end has through holes adapted to the two tie rods.

[0012] In a preferred embodiment, the present invention can be further configured such that the beam compression reinforcement component also includes a first end sleeve and a second end sleeve sleeved on the two load-bearing ends;

[0013] The first end is fitted with four first lever arms, and two first lever arms form a group;

[0014] The second end is fitted with four second lever arms, and two second lever arms form a group.

[0015] In a preferred embodiment, the present invention can be further configured such that: an arc-shaped groove is provided on the inner side of the unloading pad, and the inner support end is located within the arc-shaped groove.

[0016] In a preferred embodiment, the present invention can be further configured such that the inner side of the reinforcing pad has a trapezoidal structure, and the two unloading pads are adapted to fit into the gap between the two reinforcing pads.

[0017] In a preferred embodiment, the present invention can be further configured such that the length of the second lever arm is twice the length of the first lever arm.

[0018] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0019] 1. This utility model sets the existing precast beam box structure as a two-stage pressure relief crossbeam assembly and a beam pressure reinforcement assembly. The crossbeam assembly provides a stable lateral movement platform for the milling cutter module, and transfers the force of the milling cutter module to the beam pressure reinforcement assembly. Finally, the force borne by the beam pressure reinforcement assembly is transferred to the machine tool column along the two load-bearing ends. This enhances the stability of the milling cutter module's movement without causing deformation of the crossbeam assembly.

[0020] 2. By setting two symmetrically distributed unloading pads inside the crossbeam assembly, the pressure exerted by the milling cutter module on the beam pressure reinforcement assembly is reduced by the two unloading pads, thereby sharing part of the pressure of the milling cutter module and thus enhancing the service life of the new crossbeam. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is an exploded view of the beam compression reinforcement component of this utility model;

[0023] Figure 3 This is an exploded view of the crossbeam assembly of this utility model;

[0024] Figure 4 This utility model Figure 3 A diagram illustrating the internal explosion.

[0025] Figure label:

[0026] 100. Crossbeam assembly; 110. Load-bearing end; 1101. Beam plate; 1102. Reinforcing pad; 120. Support plate; 1201. First column head; 130. Reinforcing spring; 140. Unloading pad; 1401. Second column head; 150. Base; 1501. Hydraulic component; 1502. Internal support end; 1503. Clamping plate; 160. Tie rod;

[0027] 200, Beam compression reinforcement component; 210, First end sleeve; 2101, First lever arm; 2102, First pad; 220, Second end sleeve; 2201, Second lever arm; 2202, Second pad; 230, Main support rod; 240, Secondary support rod; 250, Stabilizing core pad; 260, First track bar; 2601, Second track bar; 2602, Track pad. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a gantry milling machine beam unloading mechanism.

[0031] Example 1:

[0032] Combination Figures 1 to 4As shown, the present invention provides a gantry milling machine crossbeam unloading mechanism, including a crossbeam assembly 100 and a beam pressure reinforcing component 200 installed in the crossbeam assembly 100. The crossbeam assembly 100 is used to enhance the support for the milling cutter module, and the beam pressure reinforcing component 200 is used to unload the milling cutter module and at the same time reduce the wear of the milling cutter module on the crossbeam assembly 100.

[0033] The crossbeam assembly 100 includes two load-bearing ends 110, and two beam plates 1101 are installed inside the two load-bearing ends 110. Two reinforcing pads 1102 are installed outside the two beam plates 1101. Two support plates 120 are installed inside the two load-bearing ends 110. Two unloading pads 140 are provided inside the two reinforcing pads 1102. A base 150 is fixedly installed inside one of the load-bearing ends 110. A hydraulic component 1501 is fixedly installed inside the base 150. An inner support end 1502 and a clamping plate 1503 are installed on the hydraulic component 1501.

[0034] A first column head 1201 is fixedly installed on the inner side of the support plate 120, and a second column head 1401 is fixedly installed on the unloading pad 140. A reinforcing spring 130 is connected between the first column head 1201 and the second column head 1401.

[0035] The inner side of the unloading pad 140 is provided with an arc-shaped groove, and the inner support end 1502 is located in the arc-shaped groove;

[0036] The inner side of the reinforcing pad 1102 has a trapezoidal structure, and the two unloading pads 140 are adapted to fit into the gap between the two reinforcing pads 1102.

[0037] Two symmetrically distributed tie rods 160 are fixedly installed at both ends of the clamping plate 1503, and both ends of the tie rods 160 are adapted to extend through to the outside of the two load-bearing ends 110.

[0038] The inner support end 1502 has a frustum-shaped structure, and the inner support end 1502 has through holes adapted to the two tie rods 160.

[0039] The beam compression reinforcement component 200 includes two first pads 2102 disposed outside one of the load-bearing ends 110, and two second pads 2202 disposed outside the other load-bearing end 110. A main support rod 230 and a secondary support rod 240 are symmetrically distributed between the first pads 2102 and the second pads 2202, and a stabilizing core pad 250 is disposed in the middle of the main support rod 230 and the secondary support rod 240.

[0040] The main support rod 230 is equipped with a first track bar 260, the auxiliary support rod 240 is equipped with a second track bar 2601, the stabilizing core pad 250 is equipped with a track pad 2602, and the unloading pad 140 is adapted to be inserted into the inner side of the first track bar 260 and the second track bar 2601.

[0041] Specifically, the two load-bearing ends 110 are installed on the columns of the CNC machine tool. The installed crossbeam assembly 100 is perpendicular to the two columns of the machine tool, while the milling cutter module slides along the outside of the crossbeam assembly 100.

[0042] When the two load-bearing ends 110 move up and down along the two columns, the crossbeam assembly 100 carries the milling cutter module to move up and down synchronously. As the milling cutter module moves laterally, the hydraulic components 1501 are operated until the internal hydraulic rod drives the inner support end 1502 and the clamping plate 1503 to extend. At this time, the two unloading pads 140 will be pressed outward by the inner support end 1502 and will continue to extend outward, eventually increasing the main pressure of the milling cutter module. The first track bar 260 and the second track bar 2601, which extend outward synchronously with the two unloading pads 140, can enhance the support force on the side of the milling cutter module and provide side wear protection for the crossbeam assembly 100.

[0043] Example 2:

[0044] Combination Figure 2 and Figure 4 As shown, based on Embodiment 1, the beam compression reinforcement component 200 further includes a first end sleeve 210 and a second end sleeve 220 sleeved on the two load-bearing ends 110;

[0045] Four first lever arms 2101 are movably installed on the first end sleeve 210, and two first lever arms 2101 form a group;

[0046] Four second lever arms 2201 are movably installed on the second end sleeve 220, and two second lever arms 2201 form a group;

[0047] The length of the second lever arm 2201 is twice the length of the first lever arm 2101.

[0048] Preferably, the two sets of first lever arms 2101 are movably mounted on the two first pads 2102 respectively, and the two sets of second lever arms 2201 are movably mounted on the two second pads 2202 respectively;

[0049] Specifically, when the clamping plate 1503 is pulled and drives the two pull rods 160 to extend at the same speed, the two pull rods 160 will simultaneously apply lateral pressure to the first end sleeve 210 and the second end sleeve 220. Finally, with the help of the two sets of first lever arms 2101 and two sets of second lever arms 2201, the two first pads 2102 and the two second pads 2202 will expand outward at equal intervals. Finally, the expanded first track bar 260, second track bar 2601 and track pad 2602 can cooperate with the two unloading pads 140 to unload the milling cutter module.

[0050] The working principle and usage process of this utility model: two first end sleeves 210 are pre-installed on the vertical beam sliding sleeve of the CNC machine box;

[0051] When the CNC machine tool is running, the sliding sleeve on its vertical rail will drive the crossbeam assembly 100 and the beam pressure reinforcement assembly 200 to move up and down as a whole. When the milling cutter module slides laterally along the outside of the crossbeam assembly 100, in order to avoid the milling cutter module being overloaded and causing deformation or wear to the crossbeam assembly 100.

[0052] By operating the hydraulic component 1501, its internal hydraulic rod pushes the clamping plate 1503 and the inner support end 1502 to slide laterally. The inner support end 1502 applies a constant compressive force to the two unloading pads 140, eventually causing the two unloading pads 140 to extend beyond the crossbeam assembly 100. The extended unloading pads 140 provide unloading protection for the milling cutter module. To prevent the unloaded milling cutter module from causing wear to the two unloading pads 140 during lateral movement, the two pull rods 160, synchronously pulled by the clamping plate 1503, drive the first end sleeve 210 and... The second end sleeve 220 moves at equal intervals. As the first end sleeve 210 and the second end sleeve 220 apply lateral pressure, the multiple first lever arms 2101 and the multiple second lever arms 2201 will help the two evenly distributed first pads 2102 and the two second pads 2202 to open and close synchronously until the first track bar 260, the second track bar 2601 and the track pad 2602 can cooperate with the extended unloading pad 140 to provide stability protection for the milling cutter module, while also providing unloading protection for the main body of the crossbeam, and reducing the wear of the unloading pad 140 caused by the load of the milling cutter module.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gantry milling machine crossbeam unloading mechanism, comprising a crossbeam assembly (100), characterized in that, It also includes a beam compression reinforcement assembly (200) installed within the beam assembly (100); The beam assembly (100) includes two load-bearing ends (110), and two beam plates (1101) are installed inside the two load-bearing ends (110), two reinforcing pads (1102) are installed outside the two beam plates (1101), two support plates (120) are installed inside the two load-bearing ends (110), and two unloading pads (140) are provided inside the two reinforcing pads (1102). The beam compression reinforcement component (200) includes two first pads (2102) disposed outside one of the load-bearing ends (110), and two second pads (2202) disposed outside the other load-bearing end (110). A main support rod (230) and a secondary support rod (240) are symmetrically distributed between the first pads (2102) and the second pads (2202), and a stabilizing core pad (250) is disposed in the middle of the main support rod (230) and the secondary support rod (240). The main support rod (230) is equipped with a first track bar (260), the auxiliary support rod (240) is equipped with a second track bar (2601), the stabilizing core pad (250) is equipped with a track pad (2602), and the unloading pad (140) is adapted to be inserted into the inner side of the first track bar (260) and the second track bar (2601).

2. The unloading mechanism for the crossbeam of a gantry milling machine according to claim 1, characterized in that, The beam assembly (100) also includes a base (150) fixedly installed inside one of the load-bearing ends (110), a hydraulic component (1501) fixedly installed inside the base (150), and an inner support end (1502) and a clamping plate (1503) installed on the hydraulic component (1501). The clamp (1503) has two symmetrically distributed tie rods (160) fixedly installed at both ends, and the two ends of the tie rods (160) are adapted to extend through to the outside of the two load-bearing ends (110).

3. The gantry milling machine beam unloading mechanism according to claim 1, characterized in that, A first column head (1201) is fixedly installed on the inner side of the pallet (120), and a second column head (1401) is fixedly installed on the unloading pad (140), and a reinforcing spring (130) is connected between the first column head (1201) and the second column head (1401).

4. The unloading mechanism for the crossbeam of a gantry milling machine according to claim 2, characterized in that, The inner support end (1502) is in the shape of a frustum, and the inner support end (1502) has through holes adapted to the two tie rods (160).

5. The unloading mechanism for the crossbeam of a gantry milling machine according to claim 1, characterized in that, The beam compression reinforcement assembly (200) also includes a first end sleeve (210) and a second end sleeve (220) sleeved on the two load-bearing ends (110). Four first lever arms (2101) are movably mounted on the first end sleeve (210), and two first lever arms (2101) form a group; Four second lever arms (2201) are movably mounted on the second end sleeve (220), and two second lever arms (2201) form a group.

6. The gantry milling machine beam unloading mechanism according to claim 1, characterized in that, The unloading pad (140) has an arc-shaped groove on its inner side, and the inner support end (1502) is located in the arc-shaped groove.

7. The unloading mechanism for the crossbeam of a gantry milling machine according to claim 1, characterized in that, The inner side of the reinforcing pad (1102) has a trapezoidal structure, and the two unloading pads (140) are adapted to fit into the gap between the two reinforcing pads (1102).

8. A gantry milling machine beam unloading mechanism according to claim 5, characterized in that, The length of the second lever arm (2201) is twice the length of the first lever arm (2101).

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