Lifting type clamp device for machine tool

Abstract

The lifting type clamp device for the machine tool comprises a base, a lifting platform, a shear fork lifting assembly and a positioning carrier used for positioning a workpiece, the shear fork lifting assembly comprises a first connecting rod, a second connecting rod and a horizontal driving device, and the lower end of the first connecting rod is in pivot joint with the base; the upper end of the first connecting rod is slidably arranged at the bottom of the lifting platform and can pivot relative to the lifting platform, the horizontal driving device is mounted on the base, the lower end of the second connecting rod is pivoted to the output end of the horizontal driving device, the upper end of the second connecting rod is pivoted to the bottom of the lifting platform, and the middle of the first connecting rod is pivoted to the middle of the second connecting rod. The positioning carrier is arranged on the lifting platform and used for positioning a workpiece, and the shear fork lifting assembly is driven to move through stretching and retracting of the output end of the horizontal driving device and linked with the lifting platform to ascend and descend. The lifting type clamp device for the machine tool has the advantages of being capable of lifting and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool mechanical fixtures, in particular to a lifting fixture device for machine tools. Background Art

[0002] Machine tools are common equipment used for processing. Machine tools often need to clamp the workpiece before processing. Some workpieces need to be raised and lowered significantly during further processing. However, the bottom carriers used to position the workpiece in existing machine tools are all fixed, that is, the workpiece cannot be raised or lowered during the processing process, which cannot meet existing production needs.

[0003] Therefore, there is an urgent need for a lifting fixture device for machine tools to solve the above problems. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a lifting clamp device for machine tools which can be lifted and lowered and has a simple structure.

[0005] In order to solve the above technical problems, the utility model provides a lifting clamp device for machine tools, which includes a base, a lifting platform, a scissors-type lifting assembly and a positioning carrier for positioning the workpiece. The scissors-type lifting assembly includes a first connecting rod, a second connecting rod and a horizontal driving device. The lower end of the first connecting rod is pivotally connected to the base, and the upper end of the first connecting rod is slidably provided at the bottom of the lifting platform and can pivot relative to the lifting platform. The horizontal driving device is installed on the base, the lower end of the second connecting rod is pivotally connected to the output end of the horizontal driving device, the upper end of the second connecting rod is pivotally connected to the bottom of the lifting platform, the middle part of the first connecting rod is pivotally connected to the middle part of the second connecting rod, and the positioning carrier is provided on the lifting platform and used to position the workpiece. The scissors-type lifting assembly is driven to move and the lifting platform is linked to rise and fall by the extension and retraction of the output end of the horizontal driving device.

[0006] Preferably, the scissors lift assembly further includes a first mounting block, the lower end of the first connecting rod is pivotally connected to the first mounting block, and the first mounting block is connected to the base.

[0007] Preferably, the scissors lift assembly further comprises a second mounting block, the upper end of the first connecting rod is pivotally connected to the second mounting block, and the second mounting block is slidably disposed on the bottom of the lifting platform.

[0008] Preferably, the scissors lift assembly further comprises a third mounting block, the lower end of the second connecting rod is pivotally connected to the third mounting block, and the output end of the horizontal drive device is connected to the third mounting block.

[0009] Preferably, the scissors lift assembly further includes a fourth mounting block, the upper end of the second connecting rod is pivotally connected to the fourth mounting block, and the fourth mounting block is connected to the bottom of the lifting platform.

[0010] Preferably, the horizontal driving device is a linear motor.

[0011] Preferably, the positioning vehicle includes a first clamping plate, a second clamping plate, a cylinder and a third clamping plate, the first clamping plate and the second clamping plate are both installed on the lifting platform, the cylinder is installed on the lifting platform, the first clamping plate, the second clamping plate and the third clamping plate together form a clamping area, the third clamping plate is installed on the output end of the cylinder, and the third clamping plate moves under the drive of the cylinder to increase or decrease the clamping area.

[0012] Specifically, the first clamping plate, the second clamping plate and the third clamping plate together form a triangle shape, and the clamping parts of the first clamping plate, the second clamping plate and the third clamping plate are all "L"-shaped rod structures.

[0013] Specifically, a guide assembly is provided between the third clamping plate and the lifting platform.

[0014] Specifically, the positioning carrier includes a four-sided lifting and loading and unloading assembly, and the four-sided lifting and unloading assembly includes a plurality of lifting and supporting columns, and the lifting and supporting columns are arranged around the outer sides of the first clamping plate, the second clamping plate and the third clamping plate.

[0015] Compared with the prior art, the scissor lift assembly is combined with a base, a lifting platform, a scissor lift assembly and a positioning carrier for positioning the workpiece, the scissor lift assembly includes a first connecting rod, a second connecting rod and a horizontal drive device, the lower end of the first connecting rod is pivotally connected to the base, the upper end of the first connecting rod is slidably arranged at the bottom of the lifting platform and can pivot relative to the lifting platform, the horizontal drive device is installed on the base, the lower end of the second connecting rod is pivotally connected to the output end of the horizontal drive device, the upper end of the second connecting rod is pivotally connected to the bottom of the lifting platform, the middle part of the first connecting rod is pivotally connected to the middle part of the second connecting rod, the positioning carrier is arranged on the lifting platform and is used to position The workpiece is driven by the extension and retraction of the output end of the horizontal drive device to drive the scissor lift assembly to move and link the lifting platform to rise and fall. In other words, the first connecting rod, the second connecting rod and the horizontal drive device together form a scissor structure. The overall structure is not only simple, but also more stable than the drive of the lifting motor. It is understandable that since the processing of the machine tool requires a top-down processing force on the workpiece, only one linear motor is set to drive the lifting, and its stability is definitely not enough. The cost of multiple settings is relatively high. Therefore, the combination of the horizontal drive device and the scissor structure greatly meets the production stability and low cost requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the three-dimensional structure of the lifting fixture device for machine tools provided by the utility model;

[0017] Figure 2 A schematic diagram of the three-dimensional structure of the lifting fixture device for machine tools provided by the utility model from another angle;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of the lifting fixture device for machine tools provided by the utility model from another angle;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the lifting clamp device for machine tools provided by the utility model in another state. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0021] Please refer to Figures 1 to 4 The lifting fixture device 100 for machine tools of the present invention includes a base 1, a lifting platform 2, a scissor lift assembly 3 and a positioning carrier 4. The base 1 is a horizontal platform body structure, the lifting platform 2 is a horizontal platform body structure, the base 1 and the lifting platform 2 are parallel to each other, the positioning carrier 4 is used for positioning, the scissor lift assembly 3 includes a first connecting rod 32, a second connecting rod 31 and a horizontal driving device 33, the lower end of the first connecting rod 32 is pivoted to the base 1, the upper end of the first connecting rod 32 is slidably provided at the bottom of the lifting platform 2 and can pivot relative to the lifting platform 2, the horizontal driving device 33 is installed on the base 1, the lower end of the second connecting rod 31 is pivoted to the output end of the horizontal driving device 33, the upper end of the second connecting rod 31 is pivoted to the bottom of the lifting platform 2, the first connecting rod 32 The middle part is pivotally connected to the middle part of the second connecting rod 31. The positioning carrier 4 is arranged on the lifting platform 2 and is used to position the workpiece. The scissor lift assembly 3 is driven to move and the lifting platform 2 is lifted and lowered by the extension and retraction of the output end of the horizontal drive device 33. In other words, the first connecting rod 32, the second connecting rod 31 and the horizontal drive device 33 together form a scissor structure. The overall structure is not only simple, but also more stable than the drive of the lifting motor. It is understandable that since the processing of the machine tool requires a processing force from top to bottom on the workpiece, only one linear motor is set to drive the lifting, and its stability is definitely not enough. The cost of multiple settings is relatively high. Therefore, the combination of the horizontal drive device 33 and the scissor structure greatly meets the production stability and low cost requirements. Preferably, the horizontal drive device 33 is a linear motor, but not limited to this. More specifically, as follows:

[0022] Please refer to Figures 1 to 4The scissors lift assembly 3 also includes a first mounting block 37, a second mounting block 36, a third mounting block 35 and a fourth mounting block 34. The lower end of the first connecting rod 32 is pivotally connected to the first mounting block 37, and the first mounting block 37 is connected to the base 1. The upper end of the first connecting rod 32 is pivotally connected to the second mounting block 36, and the second mounting block 36 is slidably provided on the bottom of the lifting platform 2 through a guide structure. The lower end of the second connecting rod 31 is pivotally connected to the third mounting block 35, and the output end of the horizontal drive device 33 is connected to the third mounting block 35. The third mounting block 35 is slidably provided on the base 1 through a guide structure, and the third mounting block 35 is driven to move by the extension and contraction of the horizontal drive device 33. The upper end of the second connecting rod 31 is pivotally connected to the fourth mounting block 34, and the fourth mounting block 34 is connected to the bottom of the lifting platform 2.

[0023] Please refer to Figures 1 to 4 The positioning carrier 4 includes a first clamping plate 42, a second clamping plate 43, a cylinder 44 and a third clamping plate 45. The first clamping plate 42 and the second clamping plate 43 are both installed on the lifting platform 2, and the cylinder 44 is installed on the lifting platform 2. The first clamping plate 42, the second clamping plate 43 and the third clamping plate 45 together form a clamping area 41. The third clamping plate 45 is installed at the output end of the cylinder 44. The third clamping plate 45 moves under the drive of the cylinder 44 and increases or decreases the clamping area 41.

[0024] Please refer to Figures 1 to 4 The first clamping plate 42, the second clamping plate 43 and the third clamping plate 45 together form a triangle shape, and the clamping parts of the first clamping plate 42, the second clamping plate 43 and the third clamping plate 45 are all "L"-shaped rod structures, thereby providing a stable clamping effect.

[0025] Please refer to Figures 1 to 4 A guide assembly is provided between the third clamping plate 45 and the lifting platform 2. For example, the guide structure and the guide assembly are both slide rail and slider guide assemblies.

[0026] Please refer to Figures 1 to 4 The positioning carrier 4 includes a four-sided lifting and loading and unloading assembly 46, which includes a plurality of lifting and supporting columns 461. The lifting and supporting columns 461 are arranged around the outside of the first clamping plate 42, the second clamping plate 43 and the third clamping plate 45. In response to the needs of some workpieces, the utility model is also equipped with a four-sided lifting and loading and unloading assembly 46 to cooperate with the positioning of the workpiece.

[0027] Please refer to the following: Figures 1 to 4 The working process of the lifting fixture device 100 for machine tools of the present invention is as follows:

[0028] The workpiece is placed within the clamping area 41 defined by the first clamping plate 42, the second clamping plate 43, and the third clamping plate 45. Driven by the cylinder 44, the third clamping plate 45 moves and shrinks the clamping area 41, thereby clamping the workpiece. The output end of the horizontal drive device 33 is extended and retracted to drive the first connecting rod 32 and the second connecting rod 31 to pivot relative to each other, thereby driving the lifting platform 2 to rise to the target position. During the machining process, the height of the lifting platform 2 is adjusted according to actual needs, thereby adaptively adapting to the machining requirements. When the machining is completed, the output end of the horizontal drive device 33 is extended and retracted to drive the first connecting rod 32 and the second connecting rod 31 to pivot relative to each other, thereby driving the lifting platform 2 to descend.

[0029] By combining the base 1, the lifting platform 2, the scissor lift assembly 3 and the positioning carrier 4 for positioning the workpiece, the scissor lift assembly 3 includes a first connecting rod 32, a second connecting rod 31 and a horizontal drive device 33. The lower end of the first connecting rod 32 is pivoted to the base 1, and the upper end of the first connecting rod 32 is slidably arranged at the bottom of the lifting platform 2 and can pivot relative to the lifting platform 2. The horizontal drive device 33 is installed on the base 1, the lower end of the second connecting rod 31 is pivoted to the output end of the horizontal drive device 33, the upper end of the second connecting rod 31 is pivoted to the bottom of the lifting platform 2, the middle part of the first connecting rod 32 is pivoted to the middle part of the second connecting rod 31, and the positioning carrier 4 is arranged on the lifting platform. 2 and is used to position the workpiece. The scissor lift assembly 3 is driven by the extension and contraction of the output end of the horizontal drive device 33 to move and link the lifting platform 2 to rise and fall. In other words, the first connecting rod 32, the second connecting rod 31 and the horizontal drive device 33 together form a scissor structure. The overall structure is not only simple, but also more stable than the drive of the lifting motor. It is understandable that since the processing of the machine tool requires a top-down processing force on the workpiece, only one linear motor is set to drive the lifting, and its stability is definitely not enough. The cost of multiple settings is relatively high. Therefore, the combination of the horizontal drive device 33 and the scissor structure greatly meets the stability and low cost requirements of production.

[0030] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lifting fixture device for a machine tool, characterized in that: It includes a base, a lifting platform, a scissors-type lifting assembly and a positioning carrier for positioning a workpiece, the scissors-type lifting assembly includes a first connecting rod, a second connecting rod and a horizontal driving device, the lower end of the first connecting rod is pivotally connected to the base, the upper end of the first connecting rod is slidably provided at the bottom of the lifting platform and can pivot relative to the lifting platform, the horizontal driving device is installed on the base, the lower end of the second connecting rod is pivotally connected to the output end of the horizontal driving device, the upper end of the second connecting rod is pivotally connected to the bottom of the lifting platform, the middle part of the first connecting rod is pivotally connected to the middle part of the second connecting rod, the positioning carrier is provided on the lifting platform and used to position the workpiece, and the scissors-type lifting assembly is driven to move and the lifting platform is linked to rise and fall by the extension and retraction of the output end of the horizontal driving device.

2. The lifting fixture device for machine tools according to claim 1, characterized in that: The scissor lift assembly further includes a first mounting block, the lower end of the first connecting rod is pivotally connected to the first mounting block, and the first mounting block is connected to the base.

3. The lifting fixture device for machine tools according to claim 1, characterized in that: The scissors lift assembly further includes a second mounting block, the upper end of the first connecting rod is pivotally connected to the second mounting block, and the second mounting block is slidably disposed on the bottom of the lifting platform.

4. The lifting fixture device for machine tools according to claim 1, characterized in that: The scissors lift assembly further includes a third mounting block, the lower end of the second connecting rod is pivotally connected to the third mounting block, and the output end of the horizontal drive device is connected to the third mounting block.

5. The lifting fixture device for machine tools according to claim 1, characterized in that: The scissors lift assembly further includes a fourth mounting block, the upper end of the second connecting rod is pivotally connected to the fourth mounting block, and the fourth mounting block is connected to the bottom of the lifting platform.

6. The lifting fixture device for machine tools according to claim 1, characterized in that: The horizontal driving device is a linear motor.

7. The lifting fixture device for machine tools according to claim 1, characterized in that: The positioning carrier includes a first clamping plate, a second clamping plate, a cylinder and a third clamping plate. The first clamping plate and the second clamping plate are both installed on the lifting platform. The cylinder is installed on the lifting platform. The first clamping plate, the second clamping plate and the third clamping plate together form a clamping area. The third clamping plate is installed at the output end of the cylinder. The third clamping plate moves under the drive of the cylinder and increases or decreases the clamping area.

8. The lifting fixture device for machine tools according to claim 7, characterized in that: The first, second and third splints together form a triangle shape, and the clamping parts of the first, second and third splints are all "L"-shaped rod structures.

9. The lifting fixture device for machine tools according to claim 7, characterized in that: A guide assembly is provided between the third clamping plate and the lifting platform.

10. The lifting fixture device for machine tools according to claim 7, wherein: The positioning carrier includes a four-sided lifting and loading and unloading assembly, and the four-sided lifting and unloading assembly includes a plurality of lifting and supporting columns, and the lifting and supporting columns are arranged around the outer sides of the first clamping plate, the second clamping plate and the third clamping plate.

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