A vertical lathe fixture

Abstract

The utility model relates to lathe fixture technical field, concretely discloses a vertical lathe fixture, including four -jaw hydraulic chuck, the four -jaw hydraulic chuck is provided with two first clamping mechanism of symmetrical settings and two second clamping mechanism of symmetrical settings, and the clamping space for clamping work piece is formed between two first clamping mechanism and two second clamping mechanism, the first clamping mechanism includes the first clamping block of installation on four -jaw hydraulic chuck, and the locating portion for fixing work piece is installed on the first clamping block, the second clamping block vertically slidingly connected has a floating axle, at this moment, because the alignment assembly and the datum surface of work piece are in close contact, can improve the accuracy when work piece processing, side improves work piece processing quality, improves the yield. The above -mentioned mode can find the zero point position when product processing quickly, need not adopt the positioning of work piece datum surface to realize complicated procedure and mechanism, and the operation plays more simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of lathe fixture technology, specifically a vertical lathe fixture. Background Technology

[0002] Vertical lathe fixtures are mainly used to fix workpieces on vertical lathes for machining. The clamping mechanism firmly fixes the workpiece on the lathe to ensure that it will not move or loosen during machining. This provides stable machining conditions and reduces machining errors. A suitable fixture can provide good rigidity and stability, reduce vibration and deformation during machining, thereby improving machining accuracy and surface quality. Fixing the workpiece and preventing it from accidentally detaching or moving during machining also improves operational safety.

[0003] In the prior art, such as the Chinese patent with authorization announcement number CN222359599U entitled "A Vertical Garage Fixture Clamping Device", the aforementioned patent discloses a vertical lathe fixture clamping device, including a housing, with a plurality of square tubes movably passing through the outer wall of the housing, the plurality of square tubes being arranged in a circular array around the housing, a drive assembly being connected to one end of each square tube located inside the housing, a square rod being slidably connected to one end of each square tube located outside the housing, a bolt being threadedly connected to the outer wall of the square tube located outside the housing, the threaded end of the bolt abutting against the outer wall of the square rod, and a clamping rod being fixedly provided at one end of the square rod.

[0004] For example, Chinese patent CN222243698U, entitled "A Vertical Lathe Fixture," discloses a vertical lathe fixture, including a fixture body, a correction inner hole, a crankshaft inside the fixture body, a positioning component on the fixture body, a support block fixedly mounted on the fixture body, a frame inside the support block, an air supply component inside the frame, a sliding groove inside the support block, and a drive plate passing through the square groove.

[0005] Existing technologies, including the aforementioned patents, can meet the processing needs of workpieces to a certain extent. However, in the engineering machinery industry, there are products such as camshafts and shaft fans; many of these products are irregularly shaped, composed of a combination of cylindrical and square shapes. Besides causing difficulties in clamping, the main problem is that clamping and positioning cannot be simultaneously achieved during processing, making it difficult to determine the processing datum (the zero point of the product's Z-axis coordinate). Existing technologies generally use a datum transformation method for processing: that is, determining the coordinate zero point position using other datums. However, the drawback of this operation is that after datum transformation, the processing dimensions are unstable relative to the original datum, resulting in non-compliant product dimensions. Utility Model Content

[0006] The purpose of this utility model is to provide a vertical lathe fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vertical lathe fixture, comprising a four-jaw hydraulic chuck, wherein the four-jaw hydraulic chuck is provided with two symmetrically arranged first clamping mechanisms and two symmetrically arranged second clamping mechanisms, and a clamping space for clamping workpieces is formed between the two first clamping mechanisms and the two second clamping mechanisms; the first clamping mechanism includes a first clamping block mounted on the four-jaw hydraulic chuck, and a positioning part for fixing the workpiece is mounted on the first clamping block; a floating shaft is vertically slidably connected to the second clamping block, and an elastic element is provided between the floating shaft and the second clamping block, the elastic force of the elastic element driving the floating shaft to move upward; and an alignment component is mounted on the second clamping block.

[0008] Furthermore, the alignment assembly includes a tool setting plate slidably connected to the second clamping block, and the tool setting plate is mounted on a floating shaft; the cutting tool abuts against the tool setting plate.

[0009] Furthermore, a guide block is mounted on the second clamping block, the floating shaft is slidably connected to the guide block, and the elastic element includes a compression spring installed between the floating shaft and the second clamping block.

[0010] Furthermore, a positioning part is provided between the first clamping block and the floating shaft; the positioning part includes a limiting rod installed on the second clamping block, and a limiting groove adapted to the limiting rod is provided on the floating shaft, and the limiting rod and the limiting groove are slidably connected.

[0011] Furthermore, the positioning part includes a pressure plate installed on the first clamping block, and a pad is also provided on the first clamping block. A positioning space is formed between the pressure plate and the pad, and the workpiece is installed inside the positioning space through the protrusion.

[0012] Furthermore, the pressure plate is provided with screws, which are threadedly connected to the pressure plate.

[0013] Furthermore, both the first and second clamping blocks are equipped with adjusting rods via nuts to clamp the workpiece.

[0014] Furthermore, there are two pressure plates, which are slidably connected to the first clamping block via connecting rods; the first clamping block is provided with a trigger part for driving the pressure plate to move downward.

[0015] Furthermore, the triggering part includes a trigger rod slidably connected to the first clamping block, and a limiting part is provided between the trigger rod and the first clamping block. The two connecting rods are fixedly connected by a horizontal plate, and a trigger groove adapted to the trigger rod is provided on the horizontal plate. The trigger rod and the trigger groove abut against each other intermittently.

[0016] Furthermore, a return spring is also provided between the connecting rod and the first clamping block.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this vertical lathe fixture, the workpiece is first mounted on a four-jaw hydraulic chuck. Then, the four-jaw hydraulic chuck drives two first clamping mechanisms and two second clamping mechanisms to move closer together, pre-fixing the workpiece. Simultaneously, when the workpiece is mounted on the second clamping block, the workpiece will contact the floating shaft. The elastic force of the elastic element drives the floating shaft to move upwards. After the floating shaft moves upwards, the bottom of the workpiece will be pressed against the floating shaft, placing it in a predetermined position. At this moment, the alignment component on the second clamping block will align with the workpiece's reference surface A, making it easy to find the workpiece's reference surface. Then, the four-jaw hydraulic chuck again drives the two first clamping mechanisms and two second clamping mechanisms closer together, completely fixing the workpiece. Afterwards, the workpiece is processed. Because the alignment component is aligned with the workpiece's reference surface, the accuracy of the workpiece processing is improved, indirectly improving the workpiece processing quality and increasing the yield rate. Meanwhile, the above method can quickly find the zero point position during product processing, without the need for complex procedures and mechanisms to locate the workpiece reference surface, making the operation simpler and more convenient, and suitable for widespread use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure from another perspective, provided for an embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of the overall top view structure provided for an embodiment of the present utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure in sectional view along the AA section;

[0023] Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle;

[0024] Figure 6This is a schematic diagram of the workpiece hidden state structure provided in an embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the installation method of the second clamping mechanism provided in an embodiment of the present utility model;

[0026] Figure 8 This is a schematic diagram of the first clamping mechanism in contact with the workpiece according to an embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the exploded state structure of the second clamping mechanism provided in an embodiment of the present utility model;

[0028] Figure 10 A schematic diagram of the first clamping mechanism in contact with the workpiece provided in another embodiment of this utility model;

[0029] Figure 11 A partial structural schematic diagram of the first clamping mechanism is provided for another embodiment of this utility model;

[0030] Figure 12 This is a schematic diagram showing the trigger rod and trigger slot separated in another embodiment of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. Four-jaw hydraulic chuck; 2. First clamping block; 3. Second clamping block; 4. Workpiece; 41. Protrusion; 5. Pressure plate; 6. Adjusting rod; 7. Nut; 8. Screw; 9. Guide block; 10. Floating shaft; 11. Tool setting plate; 12. Compression spring; 13. Limiting rod; 14. Limiting groove; 15. Lathe tool; 16. Backing plate; 17. Connecting rod; 18. Trigger rod; 19. Return spring; 20. Horizontal plate; 21. Trigger groove; 22. Limiting part. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-12This utility model provides a technical solution: a vertical lathe fixture, including a four-jaw hydraulic chuck 1, the four-jaw hydraulic chuck 1 is provided with two symmetrically arranged first clamping mechanisms and two symmetrically arranged second clamping mechanisms, and a clamping space for clamping a workpiece 4 is formed between the two first clamping mechanisms and the two second clamping mechanisms; the first clamping mechanism includes a first clamping block 2 installed on the four-jaw hydraulic chuck 1, and a positioning part for fixing the workpiece 4 is installed on the first clamping block 2; the second clamping mechanism includes a second clamping block 3 on the four-jaw hydraulic chuck 1, a floating shaft 10 is vertically slidably connected to the second clamping block 3, and an elastic element is provided between the floating shaft 10 and the second clamping block 3, the elastic force of the elastic element drives the floating shaft 10 to move upward; and an alignment component is installed on the second clamping block 3.

[0034] Specifically, this vertical lathe fixture includes a four-jaw hydraulic chuck 1. The four-jaw hydraulic chuck 1 is equipped with two symmetrically arranged first clamping mechanisms and two symmetrically arranged second clamping mechanisms, forming a clamping space for clamping the workpiece 4. Specifically, a power source is provided on the bottom of the four-jaw hydraulic chuck 1, which drives the two first clamping mechanisms and the two second clamping mechanisms to move synchronously, thereby clamping and fixing the workpiece 4, improving the stability of the workpiece 4 during processing, and resulting in better performance. Specifically, the first clamping mechanism includes a first clamping block 2 mounted on the four-jaw hydraulic chuck 1. The first clamping block 2 is equipped with a positioning part for fixing the workpiece 4. During use, when the four-jaw hydraulic chuck 1 drives the first clamping block 2 to slide, the first clamping block 2 drives the positioning part to clamp and fix the workpiece 4, thereby meeting the fixation requirements of the workpiece 4.

[0035] The second clamping mechanism includes a second clamping block 3 on a four-jaw hydraulic chuck 1. A floating shaft 10 is vertically slidably connected to the second clamping block 3, and an elastic element is provided between the floating shaft 10 and the second clamping block 3. The elastic force of the elastic element drives the floating shaft 10 to move upward. An alignment component is installed on the second clamping block 3 for positioning the workpiece reference surface. Preferably, there are two first clamping blocks 2 and two second clamping blocks 3, which are symmetrically arranged.

[0036] When this fixture is needed, firstly, the workpiece 4 is mounted on the four-jaw hydraulic chuck 1. Then, the four-jaw hydraulic chuck 1 drives the two first clamping mechanisms and the two second clamping mechanisms to move closer to each other, pre-fixing the workpiece 4. At the same time, when the workpiece 4 is mounted on the second clamping block 3, the workpiece 4 will contact the floating shaft 10. The elastic force of the elastic element drives the floating shaft 10 to move upward. After the floating shaft 10 moves upward, the bottom of the workpiece 4 will be pressed against the floating shaft 10, so that the floating shaft 10 is in a predetermined position. At this time, the alignment component on the second clamping block 3 will be in contact with the A reference surface of the workpiece 4, that is, the reference surface of the workpiece 4 can be easily found.

[0037] Then, the four-jaw hydraulic chuck 1 is used again to drive the two first clamping mechanisms and the two second clamping mechanisms closer together, completely fixing the workpiece 4. Afterwards, the workpiece 4 is machined. At this point, because the alignment components are in contact with the reference surface of the workpiece 4, the machining accuracy of the workpiece 4 is improved, thereby improving the machining quality and yield. At the same time, this method allows for quick location of the zero-point position during product machining, eliminating the need for complex procedures and mechanisms to position the reference surface of the workpiece 4, making the operation simpler and more convenient, and suitable for widespread use.

[0038] In the embodiments provided by this utility model, the alignment assembly includes a tool setting plate 11 slidably connected to the second clamping block 3, and the tool setting plate 11 is mounted on the floating shaft 10; the cutting tool 15 abuts against the tool setting plate 11. Specifically, the cutting tool 15 is a prior art technology, which is used to process the workpiece 4, and the prior art is provided with a power unit for controlling the movement of the cutting tool 15, which will not be described in detail here. During use, the tool setting plate 11 moves upward under the restriction of the floating shaft 10 by the elastic element, and at this time, after the cutting tool 15 abuts against the tool setting plate 11, the cutting tool 15 and the reference surface A of the workpiece 4 can be aligned, finding the reference surface of the workpiece 4 can improve the accuracy of the workpiece 4 during processing.

[0039] In the embodiment provided by this utility model, a guide block 9 is installed on the second clamping block 3, and the floating shaft 10 is slidably connected to the guide block 9, which can improve the stability of the floating shaft 10 when sliding. The elastic element includes a compression spring 12 installed between the floating shaft 10 and the second clamping block 3. The elastic force of the compression spring 12 drives the tool setting plate 11 to move upward so that the tool setting plate 11 abuts against the bottom. At this time, after the external cutting tool 15 abuts against the tool setting plate 11, the cutting tool 15 fits against the A reference surface of the workpiece 4.

[0040] In the embodiments provided by this utility model, a positioning part is also provided between the first clamping block 2 and the floating shaft 10; the positioning part includes a limiting rod 13 installed on the second clamping block 3, and a limiting groove 14 adapted to the limiting rod 13 is provided on the floating shaft 10. The limiting rod 13 and the limiting groove 14 are slidably connected, which can greatly improve the stability of the floating shaft 10 when sliding, and further improve the accuracy of the workpiece 4 during processing, thus meeting the work requirements.

[0041] In the embodiments provided by this utility model, the positioning part includes a pressure plate 5 installed on the first clamping block 2, and a pad 16 is also provided on the first clamping block 2. A positioning space is formed between the pressure plate 5 and the pad 16. The workpiece 4 is installed inside the positioning space through the protrusion 41, which can facilitate the clamping and fixing of the workpiece 4. At this time, during use, when it is necessary to fix the workpiece 4, the first clamping block 2 is driven to slide to the predetermined position by the four-jaw hydraulic chuck 1, and the pressure plate 5 is used to restrict the workpiece 4, thereby meeting the fixing needs of the workpiece 4 and improving the usage effect.

[0042] In the embodiments provided by this utility model, a screw 8 is provided on the pressure plate 5, and the screw 8 is threadedly connected to the pressure plate 5, which can further improve the stability of the workpiece 4 when it is fixed.

[0043] In the embodiments provided by this utility model, adjusting rods 6 are installed on both the first clamping block 2 and the second clamping block 3 via nuts 7 to clamp the workpiece 4. When it is necessary to fix the workpiece 4, the four-jaw hydraulic chuck 1 drives the first clamping block 2 and the second clamping block 3 to slide to a predetermined position. Then, the adjusting rods 6 are rotated on the first clamping block 2 and the second clamping block 3 respectively, thereby limiting the workpiece 4 after the adjusting rods 6 move to the predetermined position, further improving the stability of the workpiece 4 during fixation. Preferably, the adjusting rods 6 are threadedly connected to the first clamping block 2 and the second clamping block 3, that is, they slide during rotation, thereby allowing the state of the adjusting rods 6 to be adjusted according to work requirements, thus achieving adjustment of the state of the adjusting rods 6 according to different types of workpieces 4 to meet work needs.

[0044] In another embodiment of this utility model, there are two pressure plates 5, which are slidably connected to the first clamping block 2 via connecting rods 17. More specifically, the connecting rods 17 are vertically slidably connected to the first clamping block 2. The first clamping block 2 is provided with a trigger part for driving the pressure plate 5 to move downward. At this time, after the four-jaw hydraulic chuck 1 drives the first clamping block 2 to move to a certain stroke, the trigger part will drive the connecting rods 17 to drive the pressure plate 5 to slide vertically, thereby fixing the workpiece 4 through the pressure plate 5, thus meeting the need for fixing the workpiece 4.

[0045] In the embodiments provided by this utility model, the triggering part includes a trigger rod 18 slidably connected to the first clamping block 2, and a limiting part 22 is provided between the trigger rod 18 and the first clamping block 2. The two connecting rods 17 are fixedly connected by a horizontal plate 20, and a trigger groove 21 adapted to the trigger rod 18 is provided on the horizontal plate 20, with the trigger rod 18 intermittently abutting against the trigger groove 21. Preferably, the limiting part 22 includes a limiting strip fixedly connected to the trigger rod 18, and a limiting groove 14 adapted to the limiting strip is provided on the first clamping block 2, with the limiting strip slidably connected to the limiting groove 14. When the four-jaw hydraulic chuck 1 drives the first clamping block 2 to move to a certain stroke, the trigger bar begins to abut against the workpiece 4. Then, as the four-jaw hydraulic chuck 1 continues to drive the first clamping block 2 to slide, the trigger rod 18 will slide inside the first clamping block 2. When the trigger rod 18 slides to a certain position, it begins to abut against the trigger groove 21 on the horizontal plate 20. As the four-jaw hydraulic chuck 1 continues to drive the first clamping block 2 to slide, the trigger rod 18 will abut against the trigger groove 21 and drive the horizontal plate 20 to move downward. Then, the horizontal plate 20 drives the two connecting rods 17 to move downward synchronously, so that after the two pressure plates 5 move downward, the workpiece 4 is fixed by the pressure plates 5, thereby further improving the stability of the workpiece 4 when it is fixed. During the stroke of the four-jaw hydraulic chuck 1, which drives the first clamping block 2, the pressure plate 5 passively fixes the workpiece 4. This greatly improves the stability of the workpiece 4 during processing and reduces the use of the drive source. It not only saves costs and energy consumption but also reduces the number of work procedures, thereby improving the efficiency of fixing and disassembling the workpiece 4. It is suitable for widespread use and has excellent results.

[0046] In the embodiment provided by this utility model, a reset spring 19 is also provided between the connecting rod 17 and the first clamping block 2. The elastic force of the reset spring 19 drives the pressure plate 5 to move upward. That is, when the four-jaw hydraulic chuck 1 drives the first clamping block 2 to slide away from the workpiece 4, the horizontal plate 20 is released from restriction at this moment, and the elastic force of the reset spring 19 drives the pressure plate 5 to move upward, thereby realizing the pressure plate 5 away from the workpiece 4, so that the workpiece 4 can be disassembled, and the use effect is better.

[0047] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A vertical lathe fixture, comprising a four-jaw hydraulic chuck (1), characterized in that: The four-jaw hydraulic chuck (1) is provided with two first clamping mechanisms arranged symmetrically and two second clamping mechanisms arranged symmetrically. A clamping space for clamping the workpiece (4) is formed between the two first clamping mechanisms and the two second clamping mechanisms. The first clamping mechanism includes a first clamping block (2) mounted on a four-jaw hydraulic chuck (1), and a positioning part for fixing the workpiece (4) is mounted on the first clamping block (2); The second clamping mechanism includes a second clamping block (3) on a four-jaw hydraulic chuck (1), a floating shaft (10) is vertically slidably connected to the second clamping block (3), and an elastic element is provided between the floating shaft (10) and the second clamping block (3), the elastic force of the elastic element drives the floating shaft (10) to move upward; Furthermore, an alignment component is installed on the second clamping block (3).

2. A vertical lathe fixture according to claim 1, characterized in that: The alignment assembly includes a tool setting plate (11) slidably connected to the second clamping block (3), and the tool setting plate (11) is mounted on the floating shaft (10); the cutting tool (15) abuts against the tool setting plate (11).

3. A vertical lathe fixture according to claim 2, characterized in that: The second clamping block (3) is equipped with a guide block (9), the floating shaft (10) is slidably connected to the guide block (9), and the elastic element includes a compression spring (12) installed between the floating shaft (10) and the second clamping block (3).

4. A vertical lathe fixture according to claim 3, characterized in that: A positioning part is also provided between the first clamping block (2) and the floating shaft (10); The positioning part includes a limiting rod (13) installed on the second clamping block (3), and a limiting groove (14) adapted to the limiting rod (13) is provided on the floating shaft (10), and the limiting rod (13) and the limiting groove (14) are slidably connected.

5. A vertical lathe fixture according to claim 1, characterized in that: The positioning part includes a pressure plate (5) installed on the first clamping block (2), and a pad (16) is also provided on the first clamping block (2). A positioning space is formed between the pressure plate (5) and the pad (16), and the workpiece (4) is installed inside the positioning space through the protrusion (41).

6. A vertical lathe fixture according to claim 5, characterized in that: The pressure plate (5) is provided with screws (8), which are threadedly connected to the pressure plate (5).

7. A vertical lathe fixture according to claim 1, characterized in that: The first clamping block (2) and the second clamping block (3) are each equipped with an adjusting rod (6) by a nut (7) to clamp the workpiece (4).

8. A vertical lathe fixture according to claim 5, characterized in that: There are two pressure plates (5), which are slidably connected to the first clamping block (2) via connecting rods (17); The first clamping block (2) is provided with a trigger part for driving the pressure plate (5) to move downward.

9. A vertical lathe fixture according to claim 8, characterized in that: The triggering part includes a trigger rod (18) slidably connected to the first clamping block (2), and a limiting part (22) is provided between the trigger rod (18) and the first clamping block (2), and the two connecting rods (17) are fixedly connected by a horizontal plate (20); A trigger groove (21) adapted to the trigger rod (18) is provided on the horizontal plate (20), and the trigger rod (18) and the trigger groove (21) abut against each other intermittently.

10. A vertical lathe fixture according to claim 8, characterized in that: A return spring (19) is also provided between the connecting rod (17) and the first clamping block (2).

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