Positioning mechanism for gantry machine tool
By designing a positioning mechanism for a gantry machine tool, including a clamping arm and a driving assembly, the problem that existing devices cannot effectively clamp the circular workpiece is solved, and the stable clamping and positioning of a variety of workpiece shapes is achieved, and the applicability of the device is improved.
Patent Information
- Application Number
- CN202422199589.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing positioning devices used for gantry machines cannot effectively clamp and position the circular workpiece, and the degree of application is not high.
A positioning mechanism including a clamping arm, a rotating rod, a rotating plate, a driving rod, a sliding block and a connecting rod are designed. The rotation of the rotating plate and the rotating rod is controlled by the driving member to realize the synchronous movement of the clamping arm, and can clamp the outer circle of the circular workpiece and the four corners of the square workpiece.
The adaptability of the positioning device to the shape of the workpiece is improved, the clamping stability of the round and square workpieces is enhanced, and the applicability of the device is improved.
Smart Images
Figure CN223000151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gantry machine tools, in particular to a positioning mechanism for gantry machine tools. Background Art
[0002] Gantry machine tool is a CNC machine tool positioned according to the three-axis rectangular coordinate system, mainly composed of base, crossbeam, gantry, worktable, spindle box, etc. It controls the worktable to move in all directions through the CNC system, and performs cutting and other processing through the spindle box.
[0003] The utility model patent with authorization announcement number CN 218461581 U discloses a positioning device for a gantry machine tool, including a gantry machine tool, a mounting block is installed at the center position of the inner bottom end of the gantry machine tool, bearings are provided on both side outer walls of the mounting block, and positioning mechanisms are installed on both sides of the inner bottom end of the gantry machine tool. The structure is reasonable. The utility model is provided with a positioning mechanism, and the positioning mechanism is installed in the bearing on the mounting block. The positioning mechanism has a clamping and fixing effect, so that the workpiece to be processed is placed on the placement table, and the workpiece is clamped and fixed by rotating and adjusting the corresponding two sets of clamps on the positioning mechanism.
[0004] The above device controls the clamping plates to approach each other through the left and right threaded rods to clamp the workpiece, but is only suitable for clamping square workpieces and cannot clamp and fix round workpieces. The device is not very applicable. Utility Model Content
[0005] The utility model aims to provide a positioning mechanism for a gantry machine tool, which has the effects of improving the applicability of the device and making the clamping and positioning effect more stable.
[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a positioning mechanism for a gantry machine tool, including a gantry machine tool, a mounting block is fixedly arranged at the center of the gantry machine tool, a positioning component is arranged inside the gantry machine tool, the positioning component includes a clamping arm rotatably connected to the mounting block, four clamping arms are arranged, the four clamping arms are respectively located at the four corners of the mounting block, two adjacent clamping arms are symmetrically arranged, and a driving component for controlling the clamping arms to rotate inward synchronously to clamp the workpiece is arranged in the gantry machine tool.
[0007] By adopting the above technical solution, the workpiece is placed above the mounting block, the driving component is started, and the clamping arms are controlled to rotate inwards synchronously, so as to clamp and fix the workpiece and realize the positioning of the workpiece; since the clamping arms rotate inwards to clamp the workpiece, therefore, the clamping arms can clamp and fix the outer circle of a circular workpiece or fix the four corners of a square workpiece, effectively improving the adaptability of the device to the shape of the workpiece and enhancing the applicability of the device.
[0008] A further setting of the present utility model is that: the clamping arms are horizontally arranged, one end of each clamping arm is fixedly connected with a vertically arranged rotating rod, the rotating rods are respectively located at the four corners of the mounting block, and the rotating rods are rotatably connected with the mounting block.
[0009] By adopting the above technical solution, the rotation of the clamping arms is controlled by controlling the rotation of the rotating rods.
[0010] A further setting of the present utility model is that: the driving component includes a rotating plate rotatably connected with the gantry machine tool, driving rods are symmetrically arranged on both sides of the rotating plate, the driving rods are rotatably connected with the rotating plate, one end of each driving rod away from the rotating plate is rotatably connected with a sliding block, two guide rails are fixedly connected to the gantry machine tool, the two guide rails are symmetrically arranged at both ends of the rotating plate, the two guide rails are on the same straight line, the driving rods are respectively located on both sides of the guide rails, the sliding blocks are slidably connected with the guide rails, first connecting rods are symmetrically arranged on both sides of each sliding block, the first connecting rods are rotatably connected with the sliding blocks, one end of each first connecting rod away from the sliding block is rotatably connected with a second connecting rod, one end of each second connecting rod away from the first connecting rod is fixedly connected with the bottom of the corresponding rotating rod, and a driving member for controlling the rotation of the rotating plate is arranged inside the gantry machine tool.
[0011] By adopting the above technical solution, the driving member controls the rotation of the rotating plate, so that the driving rods rotatably connected to both sides of the rotating plate drive the sliding blocks to move along the guide rails, the movement of the sliding blocks drives the first connecting rods to move, at this time, the second connecting rods rotate under the action of the first connecting rods, so that the rotating rods fixedly connected with the second connecting rods rotate, and the rotation of the rotating rods drives the clamping arms to rotate, finally realizing the synchronous movement of the clamping arms to clamp the workpiece.
[0012] A further setting of the present utility model is that: the driving member is a driving motor, and the driving motor is fixedly connected with the gantry machine tool.
[0013] By adopting the above technical solution, the driving motor controls the rotation of the rotating plate.
[0014] A further setting of the present utility model is that: the driving member includes a rotating shaft fixedly connected to the center of the rotating plate, a worm wheel fixedly connected to the rotating shaft, a worm rotatably connected in the gantry machine tool, the worm meshing with the worm wheel, a rotating motor fixedly connected to the end of the worm, and the rotating motor fixedly connected to the gantry machine tool.
[0015] By adopting the above technical solution, the rotating motor controls the rotation of the worm, thereby controlling the rotation of the worm wheel meshing with the worm. The rotation of the worm wheel drives the rotation of the rotating plate, thereby realizing the movement of the clamping arm. At the same time, the self-locking characteristic of the worm and worm wheel can further improve the clamping stability of the clamping arm on the workpiece.
[0016] A further setting of the present utility model is that: a cylindrical clamping portion is fixedly connected to the end of the clamping arm away from the rotating rod, and the clamping portion is vertically arranged.
[0017] A further setting of the present utility model is that: a high-temperature resistant silica gel layer is wrapped on the outer surface of the clamping portion.
[0018] By adopting the above technical solution, the high-temperature resistant silica gel layer on the outer surface of the clamping portion can provide higher friction without damaging the workpiece.
[0019] A further setting of the present utility model is that: a placement layer is fixedly connected to the upper surface of the mounting block, and a plurality of waste chip grooves are opened on the upper surface of the placement layer.
[0020] The beneficial effects of the present utility model are:
[0021] 1. The present utility model designs a clamping arm, a rotating rod, a rotating plate, a driving rod, a sliding block, a first connecting rod, and a second connecting rod. Under the action of the driving member, the rotating plate rotates, so that the driving rods rotatably connected to both sides of the rotating plate drive the sliding block to move along the guide rail direction. The movement of the sliding block drives the first connecting rod to move. At this time, the second connecting rod rotates under the action of the first connecting rod, so that the rotating rod fixedly connected to the second connecting rod rotates. The rotation of the rotating rod drives the rotation of the clamping arm, and finally realizes the synchronous movement of the clamping arm to clamp the workpiece and realize the positioning of the workpiece.
[0022] 2. In the present utility model, the clamping arm rotates inward to clamp the workpiece. Therefore, the clamping arm can clamp and fix the outer circle of a circular workpiece or fix the four corners of a square workpiece, effectively improving the adaptability of the device to the shape of the workpiece and improving the applicability of the device.
[0023] 3. In the present utility model, the driving member adopts the cooperation of a worm wheel, a worm, and a rotating motor. By utilizing the self-locking characteristic of the worm and worm wheel, the clamping stability of the clamping arm on the workpiece can be further improved. Description of the Drawings
[0024] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0025] Figure 1 is a schematic structural diagram of the present utility model.
[0026] Figure 2 is a schematic diagram of the driving component of the present utility model.
[0027] Figure 3 is a schematic structural diagram of the present utility model.
[0028] In the figure, 1 is a gantry machine tool; 2 is a mounting block; 3 is a positioning component; 31 is a clamping arm; 32 is a driving component; 321 is a rotating plate; 322 is a driving rod; 323 is a sliding block; 324 is a guide rail; 325 is a first connecting rod; 326 is a second connecting rod; 5 is a driving member; 51 is a rotating shaft; 52 is a worm gear; 53 is a worm; 54 is a rotating motor; 6 is a rotating rod; 7 is a clamping part; 8 is a storage layer; 9 is a waste chip groove. Specific Embodiments
[0029] The following will clearly and completely describe the technical solutions of the present utility model in combination with specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0030] Embodiment 1: Please refer to Figures 1-3 , a positioning mechanism for a gantry machine tool, including a gantry machine tool 1. A mounting block 2 is fixedly arranged at the center inside the gantry machine tool 1. A positioning component 3 is arranged inside the gantry machine tool 1. The positioning component 3 includes a clamping arm 31 rotatably connected to the mounting block 2. There are four clamping arms 31, and the four clamping arms 31 are respectively located at the four corners of the mounting block 2. Adjacent two clamping arms 31 are symmetrically arranged. A driving component 32 for controlling the clamping arms 31 to rotate inward synchronously to clamp the workpiece is arranged inside the gantry machine tool 1. Place the workpiece above the mounting block 2, start the driving component 32, and control the clamping arms 31 to rotate inward synchronously, so as to clamp and fix the workpiece and realize the positioning of the workpiece.
[0031] Further, the clamping arm 31 is horizontally arranged. One end of the clamping arm 31 is fixedly connected to a vertical rotating rod 6. The rotating rods 6 are respectively located at the four corners of the mounting block 2. The rotating rod 6 is rotatably connected to the mounting block 2. The driving assembly 32 includes a rotating plate 321 rotatably connected to the gantry machine tool 1. Driving rods 322 are symmetrically arranged on both sides of the rotating plate 321. The driving rods 322 are rotatably connected to the rotating plate 321. One end of the driving rod 322 away from the rotating plate 321 is rotatably connected to a sliding block 323. Two guide rails 324 are fixedly connected to the gantry machine tool 1. The two guide rails 324 are symmetrically arranged at both ends of the rotating plate 321. The two guide rails 324 are on the same straight line. The driving rods 322 are respectively located on both sides of the guide rails 324. The sliding block 323 is slidably connected to the guide rails 324. First connecting rods 325 are symmetrically arranged on both sides of the sliding block 323. The first connecting rods 325 are rotatably connected to the sliding block 323. One end of the first connecting rod 325 away from the sliding block 323 is rotatably connected to a second connecting rod 326. One end of the second connecting rod 326 away from the first connecting rod 325 is fixedly connected to the bottom of the rotating rod 6. A driving member 5 for controlling the rotation of the rotating plate 321 is arranged in the gantry machine tool 1. The driving member 5 controls the rotation of the rotating plate 321, so that the driving rods 322 rotatably connected to both sides of the rotating plate 321 drive the sliding block 323 to move along the direction of the guide rails 324. The movement of the sliding block 323 drives the first connecting rod 325 to move. At this time, the second connecting rod 326 rotates under the action of the first connecting rod 325, so that the rotating rod 6 fixedly connected to the second connecting rod 326 rotates. The rotation of the rotating rod 6 drives the clamping arm 31 to move, and finally realizes the synchronous movement of the clamping arm 31 to clamp the workpiece.
[0032] Further, the driving member 5 is a driving motor, and the driving motor is fixedly connected to the gantry machine tool 1.
[0033] Further, the driving member 5 includes a rotating shaft 51 fixedly connected to the center of the rotating plate 321. A worm gear 52 is fixedly connected to the rotating shaft 51. A worm 53 is rotatably connected in the gantry machine tool 1. The worm 53 meshes with the worm gear 52. A rotating motor 54 is fixedly connected to the end of the worm 53. The rotating motor 54 is fixedly connected to the gantry machine tool 1. The rotating motor 54 controls the rotation of the worm 53, so as to control the rotation of the worm gear 52 meshing with the worm 53. The rotation of the worm gear 52 drives the rotating plate 321 to rotate, so as to realize the movement of the clamping arm 31. At the same time, the self-locking characteristic of the worm gear 52 and the worm 53 can further improve the clamping stability of the clamping arm 31 on the workpiece.
[0034] Further, a cylindrical clamping portion 7 is fixedly connected to one end of the clamping arm 31 away from the rotating rod 6. The clamping portion 7 is vertically arranged.
[0035] Further, the outer surface of the clamping portion 7 is wrapped with a high-temperature resistant silica gel layer. The high-temperature resistant silica gel layer on the outer surface of the clamping portion 7 can provide higher friction without damaging the workpiece.
[0036] Furthermore, a storage layer 8 is fixedly connected to the upper surface of the installation block 2, and a plurality of waste chip grooves 9 are formed on the upper surface of the storage layer 8.
[0037] The working principle of the present utility model is as follows:
[0038] Place the workpiece on the storage layer 8, rotate the motor 54 to control the rotation of the worm 53, thereby controlling the rotation of the worm wheel 52 meshing with the worm 53. The rotation of the worm wheel 52 drives the rotation of the rotating plate 321. The driving member 5 controls the rotation of the rotating plate 321, so that the driving rods 322 rotatably connected to both sides of the rotating plate 321 drive the sliding block 323 to move along the direction of the guide rail 324. The movement of the sliding block 323 drives the movement of the first connecting rod 325. At this time, the second connecting rod 326 rotates under the action of the first connecting rod 325, so that the rotating rod 6 fixedly connected to the second connecting rod 326 rotates. The rotation of the rotating rod 6 drives the movement of the clamping arm 31, and finally realizes the synchronous movement of the clamping arm 31 to clamp the workpiece.
Claims
1. A positioning mechanism for a gantry machine tool, comprising a gantry machine tool (1), wherein a mounting block (2) is fixedly arranged at the center of the gantry machine tool (1), characterized in that: A positioning assembly (3) is arranged inside the gantry machine tool (1), and the positioning assembly (3) comprises a clamping arm (31) rotatably connected to the mounting block (2), and four clamping arms (31) are arranged, and the four clamping arms (31) are respectively located at the four corners of the mounting block (2), and two adjacent clamping arms (31) are symmetrically arranged. A driving assembly (32) for controlling the clamping arms (31) to rotate inward synchronously to clamp a workpiece is arranged inside the gantry machine tool (1).
2. A positioning mechanism for a gantry machine tool according to claim 1, characterized in that: The clamping arm (31) is arranged horizontally, and one end of the clamping arm (31) is fixedly connected to a rotating rod (6) in a vertical direction. The rotating rod (6) is respectively located at the four corners of the mounting block (2), and the rotating rod (6) is rotatably connected to the mounting block (2).
3. A positioning mechanism for a gantry machine tool according to claim 2, characterized in that: The driving assembly (32) comprises a rotating plate (321) rotatably connected to the gantry machine tool (1), driving rods (322) are symmetrically arranged on both sides of the rotating plate (321), the driving rods (322) are rotatably connected to the rotating plate (321), one end of the driving rod (322) away from the rotating plate (321) is rotatably connected to a sliding block (323), the gantry machine tool (1) is fixedly connected to two guide rails (324), the two guide rails (324) are symmetrically arranged at the two ends of the rotating plate (321), the two guide rails (324) are located on the same straight line, and the driving rods (32 2) are respectively located on both sides of the guide rail (324), the sliding block (323) is slidably connected to the guide rail (324), the first connecting rods (325) are symmetrically arranged on both sides of the sliding block (323), the first connecting rod (325) is rotatably connected to the sliding block (323), the end of the first connecting rod (325) away from the sliding block (323) is rotatably connected to the second connecting rod (326), the end of the second connecting rod (326) away from the first connecting rod (325) is fixedly connected to the bottom of the rotating rod (6), and a driving member (5) for controlling the rotation of the rotating plate (321) is arranged in the gantry machine tool (1).
4. A positioning mechanism for a gantry machine tool according to claim 3, characterized in that: The driving component (5) is a driving motor, and the driving motor is fixedly connected to the gantry machine tool (1).
5. The positioning mechanism for a gantry machine tool according to claim 3, characterized in that: The driving member (5) comprises a rotating shaft (51) fixedly connected to the center of the rotating plate (321), a worm wheel (52) fixedly connected to the rotating shaft (51), a worm (53) rotatably connected to the gantry machine tool (1), the worm (53) meshing with the worm wheel (52), a rotating motor (54) fixedly connected to the end of the worm (53), and the rotating motor (54) fixedly connected to the gantry machine tool (1).
6. A positioning mechanism for a gantry machine tool according to claim 2, characterized in that: One end of the clamping arm (31) away from the rotating rod (6) is fixedly connected to a cylindrical clamping portion (7), and the clamping portion (7) is arranged vertically.
7. A positioning mechanism for a gantry machine tool according to claim 6, characterized in that: The outer surface of the clamping portion (7) is wrapped with a high temperature resistant silicone layer.
8. The positioning mechanism for a gantry machine tool according to claim 1, characterized in that: A storage layer (8) is fixedly connected to the upper surface of the mounting block (2), and a plurality of waste chip grooves (9) are provided on the upper surface of the storage layer (8).