Machine tool workbench

Abstract

The utility model relates to the field of movable or adjustable workpieces or tool supports, in particular to a machine tool workbench. The machine tool workbench comprises a two-way hydraulic cylinder and a supporting table top, telescopic rods on the left side and the right side of the two-way hydraulic cylinder are connected with the supporting table top, and the machine tool workbench is characterized in that the machine tool workbench comprises a fixed bottom plate, the two-way hydraulic cylinder is fixedly connected with the fixed bottom plate, and a guide supporting structure is installed on the fixed bottom plate; the upper end of the guiding supporting structure is in guiding fit with the supporting table top in the left-right direction, and at least part of the guiding supporting structure is located on the left side and the right side of the two-way hydraulic cylinder. According to the machine tool workbench, the guide supporting structure is arranged, so that the guide supporting structure bears the weight of the supporting table top and the weight of machined parts on the supporting table top, and the serious consequences that the telescopic rod is bent due to too large bearing force, and the bidirectional hydraulic cylinder is damaged due to the fact that the telescopic rod is damaged when the telescopic rod is bent at the sealing position of the bidirectional hydraulic cylinder and the telescopic rod are avoided.

Description

Technical Field

[0001] The utility model relates to the field of movable or adjustable workpiece or tool supports, in particular to a machine tool workbench. Background Art

[0002] In the process of machining parts with machine tools, it is often encountered that the part size is larger than the machine tool stroke. In this case, the part needs to be clamped multiple times to complete the processing, resulting in low processing efficiency. Multiple clamping can easily cause processing errors in the processed parts, leading to problems such as unstable product quality.

[0003] The Chinese invention patent application with application publication number CN104047911A provides a device for moving a large-load workbench using an integrated concentric piston rod cylinder. The device includes an integrated concentric cylinder body and a large-load workbench. A piston is provided in the integrated concentric cylinder body, and double piston rods are fixedly connected at both ends of the piston. The double piston rods pass through the cylinder walls on both sides of the integrated concentric cylinder body and are connected to the connecting rod. The connecting rod is fixedly connected to the large-load workbench. The double piston rods on both sides of the piston are driven to move in the same direction by the piston arranged in the integrated piston cylinder body, the connecting rod is driven to move by the double piston rod, and the large-load workbench is driven to move by the connecting rod.

[0004] When used for part clamping and processing, this device allows the connected worktable to move horizontally in the direction of piston movement after clamping the part. This helps increase the worktable's working stroke, reduce the number of part clamping times, improve processing efficiency, and reduce processing errors. However, when the worktable of this device moves to one end of the device, the majority of the weight of the worktable and the parts it carries rests on a single piston rod. This heavily loaded piston rod is susceptible to bending due to excessive force. This bending of the piston rod can damage the seal between the cylinder body and the piston rod, causing oil leakage in the cylinder and even damage to the cylinder. Utility Model Content

[0005] The purpose of the utility model is to provide a machine tool worktable to solve the problem that when the existing device for moving a large-load worktable with an integrated concentric piston rod and cylinder moves the worktable to one end of the device, most of the weight of the worktable and the parts carried on the worktable is pressed on a certain piston rod, so that the piston rod under heavy pressure is easily bent due to excessive force, and the seal between the cylinder body and the piston rod is damaged when the piston rod is bent, causing oil leakage in the cylinder and even damage to the cylinder.

[0006] The machine tool workbench of this utility model patent includes a bidirectional hydraulic cylinder and a support table. The telescopic rods on the left and right sides of the bidirectional hydraulic cylinder are respectively connected to the support table. It is characterized in that the machine tool workbench includes a fixed base plate, the bidirectional hydraulic cylinder is fixedly connected to the fixed base plate, and a guide support structure is installed on the fixed base plate. The upper end of the guide support structure is guided and matched with the support table in the left and right directions, and at least part of the guide support structure is located at the left and right sides of the bidirectional hydraulic cylinder.

[0007] Furthermore, the guide support structure is symmetrically arranged about the axis of the bidirectional hydraulic cylinder.

[0008] Furthermore, the guide support structures on the same side of the axis of the bidirectional hydraulic cylinder are arranged in rows, and each row has multiple guide support structures that are arranged at intervals.

[0009] Furthermore, among the rows of guide support structures on both sides of the axis of the bidirectional hydraulic cylinder, two rows of guide support structures are respectively located at the front and rear edge positions of the fixed base plate.

[0010] Furthermore, the guide support structure is a support slide, which includes a slider base. The lower end of the slider base is fixedly connected to the upper side of the fixed base plate, and the upper end of the slider base is fixedly connected to a guide slider with a left and right guiding direction. A guide rail that slides in cooperation with the guide slider is fixedly connected to the support table.

[0011] Furthermore, the bidirectional hydraulic cylinder is provided with a limiter for limiting the telescopic stroke of the telescopic rod.

[0012] Furthermore, the left and right ends of the telescopic rod are provided with a support table connecting plate, and the limiting component is a limiting block arranged on the side of the fixed base plate. There are two limiting blocks and they are respectively located on the left and right sides of the cylinder body of the bidirectional hydraulic cylinder. The limiting blocks and the support table connecting plate block and limit.

[0013] Furthermore, the support table connecting plate is an L-shaped plate, the vertical side of the L-shaped plate is fixedly connected to the end of the telescopic rod, and the horizontal side of the L-shaped plate is fixedly connected to the lower side of the support table.

[0014] The present invention designs an improved machine tool workbench. The prior art uses a double piston rod connected at both ends of an integrated concentric cylinder to drive the workbench to move. The machine tool workbench of the present device uses telescopic rods at both ends of a two-way hydraulic cylinder to drive the workbench to move, and a guide support structure for bearing the weight of the workbench and the parts being processed on the workbench is provided on the base plate. Compared with the prior art, the present device supports the weight of the workbench and the parts being processed on the workbench by providing a guide support structure on the fixed base plate. This avoids the situation where, when the workbench of the present device moves to one end of the device, the weight of the workbench and the parts carried on the workbench is mostly pressed on a certain telescopic rod, causing the telescopic rod to bend under excessive pressure due to the heavy pressure, and the seal between the two-way hydraulic cylinder and the telescopic rod to be damaged when the telescopic rod bends, causing the two-way hydraulic cylinder to leak, or even damage the two-way hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the machine tool workbench of the present utility model;

[0016] Figure 2 This is a bottom view of the machine tool workbench of the present invention with the fixed base plate removed;

[0017] Figure 3 This is a front view of the bidirectional hydraulic mechanism of the utility model;

[0018] Figure 4 This is a top view of the bidirectional hydraulic cylinder body and telescopic rod of the utility model;

[0019] Figure 5 This is a front view of the support slide of the utility model;

[0020] Figure 6 This is a top view of the support slide of the utility model;

[0021] Figure 7 It is a side view of the support slide of the utility model.

[0022] In the figure: 1. Support table; 2. Guide rail; 3. Guide support structure; 4. Limit block; 5. Bidirectional hydraulic cylinder; 6. Fixed base plate; 7. Telescopic rod connecting nut; 8. Telescopic rod; 9. L-shaped sealing connecting plate; 10. Bidirectional hydraulic cylinder body; 11. Support table connecting plate; 12. Slider base; 14. Guide slider. DETAILED DESCRIPTION

[0023] The specific concept of the machine tool workbench of this utility model:

[0024] The present device includes a bidirectional hydraulic cylinder and a support table. Telescopic rods on the left and right sides of the bidirectional hydraulic cylinder are respectively connected to the support table, so that the support table of the present device can move horizontally in the direction of movement of the telescopic rods. The present device also includes a fixed base plate for stabilizing the device, and a guide support structure is provided on the fixed base plate to bear the weight of the workbench and the parts being processed on the workbench. At least part of the guide support structure is located on the left and right sides of the bidirectional hydraulic cylinder to prevent the telescopic rods from being compressed and bent in the left and right directions. Compared to the prior art, the present device avoids the situation where, when the workbench of the present device moves to one end of the device, most of the weight of the workbench and the parts carried on the workbench is pressed on a certain telescopic rod, causing the telescopic rod to bend due to excessive pressure, and the seal between the bidirectional hydraulic cylinder and the telescopic rod is damaged when the telescopic rod bends, causing the bidirectional hydraulic cylinder to leak, or even damage the bidirectional hydraulic cylinder.

[0025] The following is a further detailed description of the features and performance of the present invention in conjunction with the embodiments. The "upper", "lower", "left", "right", "front" and "back" in the following embodiments are only for reference. Figure 1 The direction of the viewing angle is not intended to limit the present invention.

[0026] In Example 1, by Figure 1 、 Figure 2 、 Figure 5-Figure 7 As shown, this embodiment specifically describes the guide support structure 3. In one embodiment, there are only two guide support structures, one on the left and one on the right side of the bidirectional hydraulic cylinder 5, or there are multiple guide support structures, three on one side of the bidirectional hydraulic cylinder axis and four on the other side. In another preferred embodiment, to prevent the support table 1 from tilting to the left or right, the guide support structures 3 are symmetrically arranged about the axis of the bidirectional hydraulic cylinder 5.

[0027] In one embodiment, there are only two guide support structures on the left and right sides of the same side of the axis of the bidirectional hydraulic cylinder. In another better embodiment, in order to improve the carrying capacity of the device, the guide support structures 3 on the same side of the axis of the bidirectional hydraulic cylinder 5 are arranged in rows, and each row of guide support structures 3 has multiple guide support structures 3 and is arranged at intervals.

[0028] Based on the above embodiments and concepts, in one embodiment, the guide support structures are all located close to the axis of the bidirectional hydraulic cylinder. In another better embodiment, in order to increase the bearing span of the guide support structure 3 and improve the stability of the guide support structure 3, among the rows of guide support structures 3 on both sides of the axis of the bidirectional hydraulic cylinder 5, two rows of guide support structures 3 are respectively located at the front and rear edges of the fixed base plate 6.

[0029] Based on the above embodiments and concepts, in one embodiment, the guide support structure 3 includes a roller, which is mounted on a fixed base plate and rotates around its own axis. In another embodiment, the guide support structure 3 is a support slide, which includes a slider base 12. The lower end of the slider base 12 is fixedly connected to the upper side of the fixed base plate 6, and the upper end of the slider base 12 is fixedly connected to a guide slider 13 whose guiding direction is left and right. The support table 1 is fixedly connected to a guide rail 2 that slides with the guide slider 13.

[0030] In Example 2, by Figure 1-Figure 4 As shown, this embodiment is mainly a specific introduction to the bidirectional hydraulic cylinder. The bidirectional hydraulic cylinder includes a bidirectional hydraulic cylinder body 10. The bidirectional hydraulic cylinder body 10 is fixedly connected with an L-shaped sealing connecting plate 9. There are two L-shaped sealing connecting plates 9. The vertical edges of the two L-shaped sealing connecting plates 9 are respectively sealed and fixedly connected to the left and right ports of the bidirectional hydraulic cylinder body 10, and the horizontal edges of the L-shaped sealing connecting plates 9 are fixedly connected to the upper side of the fixed base plate 6.

[0031] In another embodiment, to ensure that the telescopic rod's travel remains within its designed range and that the bidirectional hydraulic cylinder 5 operates properly, the bidirectional hydraulic cylinder 5 is equipped with a stopper to limit its travel. The stopper is a stop ring mounted on each end of the telescopic rod. Stop blocks are provided on the left and right sidewalls of the bidirectional hydraulic cylinder body, engaging with the stop rings. The stop rings engage the stop blocks. In another embodiment, both ends of the telescopic rod 8 are equipped with a support table connecting plate. The stopper is a stop block 4 mounted on the upper side of the fixed base plate 6. Two stop blocks 4 are provided, one on each left and right side of the bidirectional hydraulic cylinder body, and the stop blocks 4 engage the support table connecting plate to maintain position.

[0032] In one embodiment, the support table connection plate is a flat plate, one side of the flat plate abuts against the lower side of the support table, and one side abuts against the upper side of the end of the telescopic rod. The support table, the flat plate, and the end of the telescopic rod are provided with coaxial fixing holes, and the expansion pin passes through the fixing holes of the support table, the flat plate, and the telescopic rod to fix the support table, the flat plate, and the telescopic rod. In another embodiment, the support table connection plate is an L-shaped plate, the vertical edge of the L-shaped plate is provided with a telescopic rod connection hole, and the left and right ends of the telescopic rod 8 are provided with external threads that match the diameter of the telescopic rod connection hole. After the end of the telescopic cylinder is inserted into the telescopic rod connection hole, the L-shaped plate is fixedly connected to the telescopic rod 8 through the telescopic rod connection nut 7. The horizontal edge of the L-shaped plate is provided with a support table 1 connection hole, and the L-shaped plate is fixedly connected to the support table 1 by bolts.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. A machine tool workbench, comprising a bidirectional hydraulic cylinder and a support table, wherein the telescopic rods on the left and right sides of the bidirectional hydraulic cylinder are respectively connected to the support table, wherein: The machine tool workbench includes a fixed base plate, a bidirectional hydraulic cylinder is fixedly connected to the fixed base plate, a guide support structure is installed on the fixed base plate, the upper end of the guide support structure is guided and matched with the support table surface in the left and right directions, and at least part of the guide support structure is located on the left and right sides of the bidirectional hydraulic cylinder.

2. The machine tool table according to claim 1, wherein: The guide support structure is symmetrically arranged about the axis of the bidirectional hydraulic cylinder.

3. The machine tool table according to claim 2, wherein: The guide support structures on the same side of the axis of the bidirectional hydraulic cylinder are arranged in rows, and each row has a plurality of guide support structures arranged at intervals.

4. The machine tool table according to claim 3, wherein: Among the rows of guide support structures on both sides of the axis of the bidirectional hydraulic cylinder, two rows of guide support structures are respectively located at the front and rear edge positions of the fixed base plate.

5. The machine tool workbench according to any one of claims 1 to 4, characterized in that: The guide support structure is a support slide, which includes a slider base. The lower end of the slider base is fixedly connected to the side surface of the fixed base plate, and the upper end of the slider base is fixedly connected to a guide slider with a left and right guiding direction. A guide rail that slides in cooperation with the guide slider is fixedly connected to the support table.

6. The machine tool workbench according to any one of claims 1 to 4, characterized in that: The bidirectional hydraulic cylinder is provided with a limiter for limiting the telescopic stroke of the telescopic rod.

7. The machine tool table according to claim 6, characterized in that: The left and right ends of the telescopic rod are both provided with a support table connecting plate. The limiting component is a limiting block arranged on the side of the fixed base plate. There are two limiting blocks and they are respectively located on the left and right sides of the bidirectional hydraulic cylinder body. The limiting blocks and the support table connecting plate block and limit.

8. The machine tool table according to claim 7, wherein: The support table connecting plate is an L-shaped plate, the vertical side of the L-shaped plate is fixedly connected to the end of the telescopic rod, and the horizontal side of the L-shaped plate is fixedly connected to the lower side of the support table.

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