Anti-inclination structure for double exchange workbenches

Abstract

The utility model discloses an anti-inclination structure for double exchange workbenches, which comprises a left workbench and a right workbench, an exchange bracket is arranged between the left workbench and the right workbench, the exchange bracket is arranged on a plunger piston extending upwards from a lifting oil cylinder, and the lifting oil cylinder is arranged on a rotary table of a rotary table. An anti-inclination assembly is arranged between a cylinder body of the lifting oil cylinder and the exchange bracket, and the anti-inclination assembly is used for preventing the exchange bracket from inclining due to uneven weight of workpieces when the worktable is exchanged. The anti-inclination assembly comprises guide rods symmetrically arranged on the left side and the right side of the plunger, the bottoms of the guide rods are installed on the cylinder body, and rod bodies of the guide rods are installed in guide holes correspondingly formed in the exchange bracket in a sliding fit mode. According to the utility model, the mechanism stability problem under the heavy load of the left and right workbenches is effectively solved, especially when the left and right workbenches bear different loads, the overturning moment generated to the exchange bracket can be effectively resisted, the dynamic balance of the exchange bracket is maintained, and the safety reliability of the exchange operation of the left and right workbenches is improved.

Description

Technical Field

[0001] The utility model relates to a rotary table for a machine tool, in particular to an anti-tilting structure for a double-exchange table. Background Technique

[0002] When a boring and milling machine is used to process large parts, it is usually processed on a single worktable. The single worktable is characterized by a large load-bearing capacity, and the load-bearing range of the part weight is 400 kg to 2000 kg. However, the disadvantages of the single worktable are also very obvious. The clamping and disassembly of the parts need to stop the machine, and the auxiliary time for loading and unloading materials causes the discontinuity of processing and low work efficiency.

[0003] In order to improve the processing efficiency, double-station exchange worktables have been widely used in the prior art. The workpieces on both worktables are exchanged between the processing position and the clamping position by means of lifting and rotation, so that the processing can continue, and the work efficiency is greatly improved.

[0004] For a lifting type double-station rotary table, during the rotation of the double worktable, due to different loads or one worktable having a workpiece while the other worktable is unloaded, the overturning moment caused by the workpiece will cause the exchange brackets supporting the left and right worktables to tilt, which greatly restricts the clamping and processing of large parts by the double-station rotary table. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide an anti-tilting structure for a double-exchange table for clamping and processing large parts.

[0006] The anti-tilting structure of the double-exchange table that can solve the above technical problems includes left and right worktables. An exchange bracket is arranged between the left and right worktables. The exchange bracket is installed on the plunger that extends upward from the lifting oil cylinder. The lifting oil cylinder is installed on the turntable of the rotary table. The rotary table is installed on the base. The difference is that:

[0007] 1. An anti-tilting component is arranged between the cylinder body of the lifting oil cylinder and the exchange bracket to prevent the exchange bracket from tilting due to uneven workpiece weights during the exchange of the worktable.

[0008] 2. The anti-tilting component includes guide rods symmetrically arranged on the left and right sides of the plunger. The bottom of each guide rod is installed on the cylinder body, and the rod body of each guide rod is slidably installed in the corresponding guide hole opened on the exchange bracket.

[0009] Advantages of the Utility Model

[0010] In the anti-tilting structure of the double-exchange workbench of the present utility model, an anti-tilting component composed of guide rods arranged on the left and right is adopted, which improves the load-bearing capacity of the workbench and effectively solves the problem of the mechanism stability under heavy loads of the left and right workbenches. Especially when the loads on the left and right workbenches are different, it can effectively resist the overturning moment of the exchange bracket and maintain the dynamic balance of the exchange bracket, thereby improving the reliability of the interchange operation safety of the left and right workbenches.

[0011] 2. The present utility model can be used as a workbench of a boring and milling machine. Under the control of a numerical control system, the machine tool can have high-efficiency, high-automation and high-precision machining functions. Brief Description of the Drawings

[0012] Figure 1 Is an axonometric view of an embodiment of the present utility model.

[0013] Figure 2 Is Figure 1 View A in

[0014] Figure 3 Is Figure 1 Sectional view B-B in

[0015] Drawing number identification: 1. Workbench; 2. Exchange bracket; 3. Lifting oil cylinder; 3-1. Plunger; 3-2. Cylinder block; 4. Rotary table; 5. Base; 6. Guide rod; 7. Servo motor; 8. Positioning support. Detailed Embodiment

[0016] The technical solution of the present utility model will be further described below in conjunction with the embodiments shown in the drawings.

[0017] The anti-tilting structure of the double-exchange workbench of the present utility model includes left and right workbenches 1. An exchange bracket 2 is arranged between the left and right workbenches 1. The exchange bracket 2 is coaxially installed on the upward-extending plunger 3-1 of a lifting oil cylinder 3. The cylinder block 3-2 of the lifting oil cylinder 3 is coaxially installed on the turntable of a rotary table 4. The rotary table 4 is installed in the middle concave part of a base 5. Positioning supports 8 corresponding to the left and right workbenches 1 are provided at the top ends of the left and right parts of the base 5. The driving of the turntable is a servo motor 7 installed inside one side of the base 5. The servo motor 7 drives the turntable to rotate through a gear transmission pair, as Figure 1 , Figure 2 , Figure 3 shown.

[0018] An anti-tilting component is provided between the exchange bracket 2 and the cylinder block 3-2 of the lifting oil cylinder 3. The anti-tilting component includes guide rods 6 symmetrically arranged on the left and right with respect to the plunger 3-1. The bottoms of the left and right guide rods 6 are mounted on the cylinder block 3-2. Guide holes (penetrating the frame body) are provided on the left and right of the exchange bracket 2 for the left and right guide rods 6. The rod bodies of the left and right guide rods 6 are respectively slidably fitted and installed in the left and right guide holes, thereby forming an auxiliary support for the installation structure of the exchange bracket 2, playing an anti-tilting role when the two worktables 1 on the left and right are interchanged, when there are workpieces on one worktable 1 and no workpieces on the other worktable 1 and the weight deviation is large, such as Figure 2 , Figure 3 shown.

[0019] Setting of relevant specification parameters in the structure of the present utility model:

[0020] 1. The tabletop of each worktable 1 is designed as a square, and the side length dimension of the square tabletop is 500 mm to 1600 mm.

[0021] 2. The diameter of each guide rod 6 is Ф40 mm to Ф100 mm.

[0022] 3. The lifting and lowering stroke of the plunger 3-1 of the lifting oil cylinder 3 is 50 mm to 200 mm.

[0023] The operation mode of the present utility model is as follows:

[0024] 1. In the initial state, the plunger 3-1 retracts and lowers the exchange bracket 2, and the exchange bracket 2 places the left and right worktables 1 on the left and right positioning supports 8, such as Figure 3 the parking position of the right worktable 1 on the right side in.

[0025] 2. When exchanging the left and right worktables, the lifting oil cylinder 3 is supplied with oil, the plunger 3-1 rises to the stroke, the exchange bracket 2 rises and lifts the left and right worktables 1, and the left and right worktables 1 are separated from the left and right positioning supports 8, such as Figure 3 the lifting position of the left worktable 1 on the left side in.

[0026] 3. The servo motor 7 is started to drive the turntable of the rotary table 4 to rotate, and the turntable rotates 180° to interchange the positions of the left and right worktables 1.

[0027] 4. The lifting oil cylinder 3 returns oil, the plunger 3-1 descends to the stroke, the exchange bracket 2 descends and drops the left and right worktables 1, and the left and right worktables 1 after the exchange position are parked on the left and right positioning supports 8.

[0028] During the operation of the present utility model, the operator only needs to alternately load and unload workpieces on the left and right worktables 1 to complete the automatic intelligent processing of workpieces, with high efficiency and greater safety.

Claims

1. Double-exchange workbench anti-tilting structure, including left and right workbenches (1), an exchange bracket (2) is provided between the left and right workbenches (1), the exchange bracket (2) is installed on the plunger (3-1) extending upward from the lifting oil cylinder (3), the lifting oil cylinder (3) is installed on the turntable of the rotary table (4), and the rotary table (4) is installed on the base (5), characterized in that: An anti-tilting component for preventing the exchange bracket (2) from tilting due to uneven workpiece weights during the exchange of the workbench (1) is provided between the cylinder block (3-2) of the lifting oil cylinder (3) and the exchange bracket (2); The anti-tilting component includes guide rods (6) symmetrically arranged on the left and right sides of the plunger (3-1), the bottom of each guide rod (6) is installed on the cylinder block (3-2), and the rod body of each guide rod (6) is slidably installed in a corresponding guide hole opened on the exchange bracket (2).

Images