Hydraulic vice

Abstract

The utility model discloses a hydraulic vice which comprises a base which comprises a first end, a second end and a sliding groove formed between the first end and the second end. The driving mechanism comprises an oil cylinder, a connecting block and a movable jaw, the movable jaw is fixed to the side, close to the second end, of the connecting block, the bottom of the movable jaw comprises a sliding block, the sliding block is matched with the sliding groove and embedded in the sliding groove, and the oil cylinder is used for driving the connecting block to do reciprocating motion in the direction of the second end; the oil cylinder can drive the movable jaw to do reciprocating motion along the sliding chute; the fixed jaw is fixedly arranged on one side of the second end, the side, facing the first direction, of the fixed jaw comprises a plurality of open grooves of different sizes, and each open groove is matched with one cylinder body of different size. By means of the structure, cylinder bodies of different sizes can be matched through the multiple open grooves in the movable jaw, automatic position finding can be achieved when the cylinder bodies are fixed, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to a hydraulic vise and belongs to the technical field of clamping tools. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] When machining the cylinder body of a vertical oil cylinder, a machine vise is generally used to clamp and fix the cylinder body, so that the CNC milling machine can process it normally. However, in the actual production process, the traditional vises on the market have different outer dimensions of the oil cylinder body due to the different cylinder diameters. Therefore, the opening size of the vise needs to be adjusted frequently by hand when fixing. The traditional vise is driven by threads, which requires a lot of time to adjust the opening size of the jaws.

[0004] At the same time, in order to make the cylinder body clamp more firmly, the staff usually use a copper rod to hit the end of the vise wrench when clamping the cylinder body to make the cylinder body clamped tighter. However, this operation will force the staff to use the copper rod when loosening the vise, making the entire clamping process more time-consuming and laborious.

[0005] Also, before using a CNC milling machine to process the cylinder body, it is necessary to determine the exact position of the part in the machine tool coordinate system. However, traditional vises do not have an alignment function, and each time the position is fixed, a lot of unnecessary time will be consumed.

[0006] There is currently no hydraulic vise that can solve the above problems. Utility Model Content

[0007] The utility model aims to provide a hydraulic vise which can match cylinders of various sizes through a plurality of opening slots in a movable jaw, and can realize automatic positioning when fixing the cylinder, thus saving time and labor.

[0008] In order to achieve the above-mentioned object, the utility model discloses the following hydraulic vise, which is used to fix one of a plurality of cylinders of different sizes; it includes:

[0009] A base, the base comprising a first end and a second end, the base comprising a slide groove arranged between the first end and the second end;

[0010] A driving mechanism, the driving mechanism comprising an oil cylinder, a connecting block and a movable jaw, the oil cylinder being fixedly arranged on one side of the first end, the movable jaw being fixed on one side of the connecting block close to the second end, the bottom of the movable jaw comprising a slider, the slider matching the slide groove, the slider being embedded in the slide groove, the oil cylinder being used to drive the connecting block to reciprocate in the direction of the second end, so that the oil cylinder can drive the movable jaw to reciprocate along the slide groove;

[0011] A fixed jaw is fixedly arranged on one side of the second end, and the side of the fixed jaw facing the first direction includes a plurality of opening slots of different sizes, wherein each of the opening slots matches one of the cylinder bodies of different sizes.

[0012] Furthermore, the first end includes a plurality of oil inlet holes and oil outlet holes, wherein each of the oil inlet holes corresponds to one oil outlet hole, and a corresponding group of the oil inlet holes and the oil outlet holes have an oil path in communication therebetween, the oil inlet holes are arranged toward the oil cylinder, and the oil outlet holes are arranged toward the outside of the base.

[0013] Further, the oil cylinder is configured as a lower oil circuit oil cylinder, and the bottom of the oil cylinder is fixed on the top surface of the first end, and the oil inlet hole is also configured on the top surface of the first end.

[0014] Furthermore, the bottom of the oil cylinder includes a groove, the top surface of the first end includes a convex key, and the groove matches the convex key.

[0015] Furthermore, the side of the movable jaw facing the first end includes a fixing groove for accommodating the connecting block, and one side of the fixing groove also includes a set screw, one end of the set screw faces the outside of the movable jaw, and the other end of the set screw faces the fixing groove, so that the connecting block can be fixed in the fixing groove by the set screw.

[0016] Furthermore, the connection block is connected to the piston of the oil cylinder via threads, so that the connection block can be quickly disassembled by rotation.

[0017] Furthermore, a plurality of connecting blocks of different lengths are included to facilitate replacement when fixing cylinder bodies of different sizes.

[0018] Furthermore, each of the opening slots includes a pair of limiting teeth that are mirror-imaged and perpendicular to the moving direction of the movable jaw, so that the cylinder body can be limited by the opening slot along the direction perpendicular to the moving direction of the movable jaw.

[0019] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0020] 1. The hydraulic vise of the utility model can be provided with a plurality of opening grooves of different sizes on the movable jaws, and each opening groove is matched with one of the cylinders of different sizes, so that a single hydraulic vise of the utility model can fix a plurality of cylinders of different sizes at the same time without adjustment. Compared with the existing hydraulic vise that can only fix a cylinder of a single size, or needs to fix cylinders of different sizes through thread adjustment, the processing efficiency of the cylinder is significantly improved.

[0021] 2. The top of the hydraulic vise of the utility model includes an arc-shaped portion in which a movable jaw can reciprocate along a preset direction, while a fixed jaw can always maintain a fixed position. Therefore, through the cooperation of the movable jaw and the fixed jaw in the driving mechanism, the positioning operation of the cylinder body can be simultaneously realized during the fixing process, so that the cylinder body to be fixed is always fixed on one side of the second end position of the fixed jaw, saving unnecessary time required to position the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is an axonometric view of a hydraulic vise provided in an embodiment of this specification;

[0024] Figure 2 It is a schematic diagram of a base of a hydraulic vise provided in an embodiment of this specification;

[0025] Figure 3 It is a schematic diagram of a driving mechanism of a hydraulic vise provided in an embodiment of this specification;

[0026] In the figure: 1. base; 11. first end; 111. oil inlet hole; 112. oil outlet hole; 12. second end; 13. slide groove; 14. cam; 2. driving mechanism; 21. oil cylinder; 211. groove; 22. connecting block; 23. movable jaw; 231. slider; 232. fixing groove; 233. stop screw; 3. fixed jaw; 31. opening groove; 311. limiting tooth. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0028] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0029] See also Figure 1-3 , is a hydraulic vise of the present embodiment, used to fix one of a plurality of cylinders of different sizes; it includes:

[0030] A base 1, the base 1 comprises a first end 11 and a second end 12, and the base 1 comprises a slide groove 13 arranged between the first end 11 and the second end 12;

[0031] The driving mechanism 2 includes a cylinder 21, a connecting block 22 and a movable jaw 23. The cylinder 21 is fixedly arranged on one side of the first end 11, and the movable jaw 23 is fixed on one side of the connecting block 22 close to the second end 12. The bottom of the movable jaw 23 includes a slider 231, and the slider 231 matches the slide groove 13. The slider 231 is embedded in the slide groove 13. The cylinder 21 is used to drive the connecting block 22 to reciprocate in the direction of the second end 12, so that the cylinder 21 can drive the movable jaw 23 to reciprocate along the slide groove 13;

[0032] The fixed jaw 3 is fixedly arranged on one side of the second end 12, and the side of the fixed jaw 3 facing the first direction 11 includes a plurality of opening slots 31 of different sizes, wherein each opening slot 31 matches one of the cylinder bodies of different sizes.

[0033] Through the above structure, when in use, the staff only needs to place the cylinder body to be fixed on the second end 12 of the base 1 and on one side of the fixed jaw 3. Since the fixed jaw 3 includes multiple opening grooves 31 of different sizes, the staff can quickly align the cylinder body to one of the opening grooves 31 that matches the outer diameter of the cylinder body to be fixed this time, and then start the driving mechanism 2 to start fixing the cylinder body. After the driving mechanism 2 is started, the cylinder 21 can start to push the connecting block 22, and then drive the movable jaw 23 on the other side of the connecting block 22 to move toward the cylinder body to be fixed at the second end 12, until the movable jaw 23 laterally contacts the side of the cylinder body to be fixed, and continue to drive the movable jaw 23 to push the cylinder body until the cylinder body is completely clamped together with the fixed jaw 3, that is, the cylinder body to be fixed is completely clamped on the opening groove 31 of its corresponding size, so that the cylinder body is limited by the opening groove 31 of the fixed jaw 3 along other directions different from the movement of the movable jaw 23, and the side of the cylinder body toward the first end 11 also completely clamps the cylinder body until the cylinder body is completely limited and fixed. At this time, the driving mechanism 2 is stopped, and the complete fixation of the cylinder body in this embodiment is completed.

[0034] In the above process, since a plurality of opening grooves 31 of different sizes can be set on one side of the fixed jaw 3, when it is necessary to fix cylinder bodies of different sizes, there is no need to readjust the size of the fixed mold, disassemble and replace the new mold, etc., as in the case of ordinary hydraulic vises in the prior art. Instead, it is only necessary to find an opening groove 31 corresponding to the cylinder body to be fixed, and place the cylinder body to be fixed on one side of the above opening groove 31, and then the driving mechanism 2 can be started to fix the cylinder body. Since the time for replacement and adjustment is saved, the fixing speed of the entire cylinder body is improved.

[0035] In addition, in the above-mentioned embodiment, since the fixed jaw 3 is fixedly arranged at the second end 12 of the base 1, and the driving mechanism 2 can drive the connecting block 22 to clamp the cylinder body to be fixed along the fixed direction toward the second end 12, at this time, considering that the position of the fixed jaw 3 is fixed, therefore, after being fixed, the position of the cylinder body clamped on one side of the fixed jaw 3 is obviously also a predictable fixed value. In this way, in the process of fixing the cylinder body through this embodiment, part of the correction link of the cylinder body position is saved, and the automatic positioning operation is realized, thereby further saving the operation time and improving the work efficiency.

[0036] Furthermore, the base 1 is configured as a regular I-shaped track extending from the first end 11 to the second end 12, the slide 13 is also configured to extend from the first end 11 to the second end 12, and the piston movement direction of the oil cylinder 21 driving the connecting block 22 and the movable jaw 23 to move is also extending from the first end 11 to the second end 12, and is coaxial with the track of the slide 13, and the slide 13 occupies most of the space of the base 1 between the first end 11 and the second end 12, so that the hydraulic vise of this embodiment is more compact. See Figure 3 Each opening slot 31 includes a pair of limiting teeth 311 that are mirror-imaged and perpendicular to the moving direction of the movable jaw 23, so that the cylinder body can be limited by the opening slot 31 along the moving direction perpendicular to the moving direction of the movable jaw 23. Specifically, that is to say, the cylinder body to be fixed can be limited by the two limiting teeth 311 on the left and right sides of the piston direction of the oil cylinder 21 on the side facing the second end 12. When the movable jaw 23 clamps the cylinder body in the direction of the cylinder body toward the first end 11, due to the limiting of the limiting teeth 311 on both sides, it is difficult for the cylinder body to deviate from the first end 11 to the second end 12, and a better fixing effect can be achieved.

[0037] Of course, the setting of the limiting tooth 311 matches the shape of one side of the cylinder body to be fixed, and can achieve the limiting of the cylinder body along the direction not parallel to the first end 11 toward the second end 12, and it does not necessarily have to be Figure 3 In another embodiment, the cylinder body is in a single sharp angle shape on the side facing the fixed jaw 3. In this embodiment, only a single limiting tooth 311 capable of clamping the sharp angle is required to fix the cylinder body.

[0038] Furthermore, if Figure 2 As shown, the first end 11 includes a plurality of oil inlet holes 111 and oil outlet holes 112, wherein each oil inlet hole 111 corresponds to an oil outlet hole 112, and a corresponding group of oil inlet holes 111 and oil outlet holes 112 have a connected oil path, the oil inlet holes 111 are arranged toward the oil cylinder 21, and the oil outlet holes 112 are arranged toward the outside of the base. The oil cylinder 21 is arranged as a lower oil path oil cylinder, and the bottom of the oil cylinder 21 is fixed on the top surface of the first end 11, and the oil inlet holes 111 are also arranged on the top surface of the first end 11. For details, please refer to Figure 1The bottom of the oil cylinder 21 includes a groove 211, and the top surface of the first end 11 includes a convex key 14, and the groove 211 matches the convex key 14. Through the above structure, during the operation of the oil cylinder 21 of the driving mechanism 2, the entire oil circuit can be connected to the oil cylinder 21 indirectly through the base 1, and the oil cylinder 21 is supplied and drained from the bottom direction of the oil cylinder 21, thus avoiding unnecessary interference of the traditional structural oil circuit with the movable fixed module (that is, the connecting block 22, the movable jaw 23, etc. in this embodiment), improving the stability during the fixing process, avoiding mechanical wear, and increasing the service life of the hydraulic vise. Specifically, as Figure 2 As shown, in this embodiment, two groups of oil inlet holes 111 and oil outlet holes 112 are included, and the two groups of oil inlet holes 111 and oil outlet holes 112 are arranged on the same side of the first end 11, so as to facilitate docking with external driving equipment, wherein one group of oil inlet holes 111 and oil outlet holes 112 is used to realize the piston ejection operation of the oil cylinder 21, and the other group is used to realize the piston retraction operation of the oil cylinder 21. At the same time, the fixing mode of the convex key 14 and the groove 211 also makes it easier to disassemble and maintain the oil cylinder 21.

[0039] Furthermore, if Figure 1 and Figure 3 As shown, the side of the movable jaw 23 facing the first end 11 includes a fixing groove 232 for accommodating the connection block 22, and one side of the fixing groove 232 also includes a set screw 233, one end of the set screw 233 faces the outside of the movable jaw 23, and the other end of the set screw 233 faces the fixing groove 232, so that the connection block 22 can be fixed in the fixing groove 232 by the set screw 233. Specifically, the fixing groove 232 and one end of the connection block 22 inserted into the fixing groove 232 are clearance-matched by means of the set screw 233, and the main function of the set screw 233 is to abut and fix on one side of the connection block 22 to prevent the fixing groove 232 from moving relative to the set screw 233 and the connection block 22.

[0040] Furthermore, if Figure 3 As shown, the connecting block 22 is connected to the piston of the oil cylinder 21 by threads, so that the connecting block 22 can be quickly disassembled by rotation. In a few cases, the stroke of the oil cylinder 21 plus the connecting block 22 toward the second end 12 is too short to contact the cylinder body to be fixed, or the stroke of the oil cylinder 21 plus the connecting block 22 toward the second end 12 is too long to place the cylinder body to be fixed on the base 1. In this case, the hydraulic vise of this embodiment can be adapted to a wider range of cylinder body sizes through the quick-detachable connecting block 22.

[0041] Although different specific embodiments are mentioned in the content of this application, this application is not limited to the situations described in the industry standards or embodiments, etc. Some industry standards or slightly modified implementation plans based on the implementation of the custom methods or embodiments can also achieve the same, equivalent or similar, or predictable implementation effects after deformation of the above embodiments. The embodiments of data acquisition, processing, output, judgment methods, etc. after these modifications or deformations can still fall within the scope of the optional implementation plans of this application.

[0042] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A hydraulic vise for fixing one of a plurality of cylinders of different sizes; characterized in that: The hydraulic vise comprises: A base, the base comprising a first end and a second end, the base comprising a slide groove arranged between the first end and the second end; A driving mechanism, the driving mechanism comprising an oil cylinder, a connecting block and a movable jaw, the oil cylinder being fixedly arranged on one side of the first end, the movable jaw being fixed on one side of the connecting block close to the second end, the bottom of the movable jaw comprising a slider, the slider matching the slide groove, the slider being embedded in the slide groove, the oil cylinder being used to drive the connecting block to reciprocate in the direction of the second end, so that the oil cylinder can drive the movable jaw to reciprocate along the slide groove; A fixed jaw is fixedly arranged on one side of the second end, and the side of the fixed jaw facing the first direction includes a plurality of opening slots of different sizes, wherein each of the opening slots matches one of the cylinder bodies of different sizes.

2. The hydraulic vise according to claim 1, characterized in that: The first end includes a plurality of oil inlet holes and oil outlet holes, wherein each of the oil inlet holes corresponds to an oil outlet hole, and a corresponding group of the oil inlet holes and the oil outlet holes have a communicating oil path, the oil inlet holes are arranged toward the oil cylinder, and the oil outlet holes are arranged toward the outside of the base.

3. The hydraulic vise according to claim 2, characterized in that: The oil cylinder is configured as a lower oil circuit oil cylinder, and the bottom of the oil cylinder is fixed on the top surface of the first end, and the oil inlet hole is also configured on the top surface of the first end.

4. The hydraulic vise according to claim 3, characterized in that: The bottom of the oil cylinder comprises a groove, and the top surface of the first end comprises a convex key, and the groove matches the convex key.

5. The hydraulic vise according to claim 1, characterized in that: The side of the movable jaw facing the first end includes a fixing groove for accommodating the connecting block, and one side of the fixing groove also includes a set screw, one end of the set screw faces the outside of the movable jaw, and the other end of the set screw faces the fixing groove, so that the connecting block can be fixed in the fixing groove by the set screw.

6. The hydraulic vise according to claim 1, characterized in that: The connecting block is connected to the piston of the oil cylinder through threads, so that the connecting block can be quickly disassembled by rotation.

7. The hydraulic vise according to claim 1, characterized in that: A plurality of connecting blocks of different lengths are included to facilitate replacement when fixing cylinder bodies of different sizes.

8. The hydraulic vise according to claim 1, characterized in that: Each of the opening slots includes a pair of mirror-image limiting teeth that are perpendicular to the moving direction of the movable jaw, so that the cylinder body can be limited by the opening slot along the direction perpendicular to the moving direction of the movable jaw.

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