Quick-release jaw self-centering vice

Abstract

The utility model relates to a quick-release jaw self-centering vise, which comprises a vise base, a screw rod bearing seat, a driving screw rod and two sliding block bases, the screw rod bearing seat is arranged on the vise base, the driving screw rod is arranged on the screw rod bearing seat in a circumferential rotation manner, and the two sliding block bases are arranged on the driving screw rod. Threaded sections with opposite thread directions are arranged on the peripheral walls, located on the two sides of the screw bearing seat, of the driving screw correspondingly, the two sliding block bases are slidably arranged on the vice base correspondingly, and the two threaded sections are sleeved with the two sliding block bases correspondingly in a threaded mode. A screw rod bearing seat is arranged on the screw rod bearing seat, a vice fixing block is detachably installed on each sliding block base, the two vice fixing blocks are symmetrically arranged relative to the screw rod bearing seat, a clamping groove is formed in the top of each vice fixing block in a sunken mode, and a first vice claw or a second vice claw is detachably connected into each clamping groove. According to the self-centering vice with the quick-release jaw, different workpieces can be clamped in a matched mode by quickly detaching and replacing the vice jaw or reversely installing the vice fixing block, the center positioning precision is high, and operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of vise clamping technology, and in particular to a quick-release self-centering vise. Background Technology

[0002] In the field of machining mechanical parts, vises are often used as tooling fixtures. Existing vises typically consist of a base and two jaws, one of which is fixed to the base as a fixed jaw; the other jaw slides freely on the base as a movable jaw. When the vise clamps a workpiece, the movable jaw slides towards the fixed jaw, causing one side of the workpiece to fit tightly against the fixed jaw.

[0003] Among them, vises use one edge of the workpiece as the machining reference. When the machining process requires the center of the workpiece as the reference, manual alignment is often required, which prolongs the machining preparation time, making the operation cumbersome and reducing machining efficiency. In addition, when machining different types of workpieces, it is often necessary to replace the entire vise with a matching one. This not only requires disassembling and replacing the entire vise, but also further increases the procurement cost of the vise. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a quick-release self-centering vise that does not require disassembling the entire vise. It can be adapted to clamp different workpieces by quickly replacing the vise jaws or reversing the vise fixing block. It also has high center positioning accuracy and is easy to operate.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick-release self-centering vise includes a vise base, a screw bearing seat, a drive screw, and two slider bases. The screw bearing seat is mounted on the vise base, and the drive screw is rotatably mounted on the screw bearing seat. The outer peripheral walls of the drive screw on both sides of the screw bearing seat are respectively provided with threaded segments with opposite thread directions. The two slider bases are slidably mounted on the vise base, and the two slider bases are threaded onto the two threaded segments respectively. Each slider base is detachably mounted with a vise fixing block. The two vise fixing blocks are symmetrically arranged with respect to the screw bearing seat. The top of each vise fixing block is recessed with a clamping groove, and a first vise jaw or a second vise jaw is detachably connected to the clamping groove.

[0007] In one embodiment, V-shaped vise blocks are detachably connected to the opposite sides of the two vise fixing blocks, and V-shaped jaws are provided on the opposite sides of the two V-shaped vise blocks.

[0008] In one embodiment, the side of the vise fixing block connected to the V-shaped vise block is recessed with a plurality of first threaded holes, and the side wall of the V-shaped vise block connected to the vise fixing block is provided with a first through hole adapted to the first threaded holes. The first through hole allows the screw to pass through and the screw threads to be tightened in the corresponding first threaded hole.

[0009] In one embodiment, the bottom of the clamping groove is recessed with a plurality of second threaded holes, and the first vise claw or the second vise claw is detachably installed in the second threaded holes by screws.

[0010] In one embodiment, the clamping groove is a U-shaped groove structure, the first vise claw is a long strip structure, a second through hole for the screw to pass through is provided on the first vise claw, the lower end of the first vise claw is inserted into the clamping groove, and first vise teeth are respectively provided on both sides of the first vise claw extending above the clamping groove.

[0011] In one embodiment, the second vise claw is a block structure, and a third through hole for the screw to pass through is provided on the second vise claw. Two second vise claws are detachably connected in the clamping groove. The lower end of the second vise claw is inserted into the clamping groove, and second vise teeth are respectively provided on both sides of the second vise claw extending above the clamping groove.

[0012] In one embodiment, L-shaped vise jaws are provided on opposite sides of the two vise fixing blocks. When the two vise fixing blocks are installed in reverse, a clamping space is formed between the L-shaped vise jaws on the two vise fixing blocks.

[0013] In one embodiment, the top of the slider base protrudes upward to form a mounting portion, and the bottom of the vise fixing block is recessed to form a mounting groove, which is fitted into the mounting portion.

[0014] In one embodiment, the mounting portion of the slider base has a V-shaped protrusion on one side near the screw bearing seat, and a spring pin is telescopically provided on the other side. Correspondingly, the width of the mounting groove is greater than the width of the mounting portion, and the two sides of the mounting groove are respectively provided with mating grooves that are adapted to the protrusion. The two sides of the mounting portion are respectively provided with limiting protrusions, and the bottom of the vise fixing block is provided with limiting recesses nested with the limiting protrusions on both sides of the mounting groove.

[0015] In one embodiment, the vise base is provided with a limiting groove, the screw bearing seat is disposed in the middle of the limiting groove, and the two slider bases are slidably disposed in the limiting groove; the two ends of the drive screw extend out of the vise base, and the two ends of the drive screw are respectively fixedly connected with drive nuts.

[0016] Compared with traditional technology, the beneficial effects of this invention's quick-release self-centering vise are:

[0017] This utility model's quick-release self-centering vise eliminates the need to disassemble the entire vise. By quickly replacing the vise jaws or reversing the vise fixing block, it can be adapted to clamp different workpieces. It boasts high centering accuracy and convenient operation. Specifically, this utility model employs a modular design, forming a clamping groove above the vise fixing block, and detachably configuring either a first or second vise jaw. This allows users to easily select the appropriate first or second vise jaw for different workpieces. The first or second vise jaw can be quickly replaced using screws. Furthermore, the first vise jaw can be either equipped with or without first vise teeth, and the second vise jaw can be either equipped with or without second vise teeth, enabling it to accommodate a wider range of workpiece types. This invention features two vise fixing blocks that are fixed to the slider base with screws, allowing for quick reverse installation of the two vise fixing blocks. After reverse installation, the clamping space formed between the L-shaped jaws on the two vise fixing blocks can be used to clamp square workpieces. Furthermore, by connecting V-shaped vise blocks to opposite sides of the two vise fixing blocks, circular workpieces can be clamped through the clamping space formed between the V-shaped jaws on the two V-shaped vise blocks. The V-shaped vise blocks can be quickly disassembled or installed using screw connections. Moreover, this invention utilizes two threaded segments with opposite thread directions on both sides of the drive screw, allowing the two slider bases to move synchronously relative to each other or in opposite directions by rotating the drive screw. This provides high center positioning accuracy and is easy to operate.

[0018] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the quick-release self-centering vise of this utility model;

[0020] Figure 2 This is one of the exploded schematic diagrams of the quick-release self-centering vise of this utility model;

[0021] Figure 3 This is the second exploded view of the quick-release self-centering vise of this utility model;

[0022] Figure 4This is the second structural schematic diagram of the quick-release self-centering vise of this utility model;

[0023] Figure 5 This is the third exploded view of the quick-release self-centering vise of this utility model;

[0024] Figure 6 This is the third structural schematic diagram of the quick-release self-centering vise of this utility model;

[0025] Figure 7 This is the fourth structural schematic diagram of the quick-release self-centering vise of this utility model;

[0026] Figure 8 This is the fourth exploded view of the quick-release self-centering vise of this utility model;

[0027] Figure 9 This is the fifth exploded view of the quick-release self-centering vise of this utility model;

[0028] Figure 10 This is a partial cross-sectional schematic diagram of the quick-release self-centering vise of this utility model;

[0029] Figure 11 This is the fifth structural schematic diagram of the quick-release self-centering vise of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Vise base; 11. Limiting groove; 12. Screw bearing seat; 20. Drive screw; 21. Threaded section; 22. Drive nut; 30. Slider base; 31. Mounting part; 32. Limiting protrusion; 33. Protrusion; 34. Spring pin; 40. Vise fixing block; 41. First threaded hole; 42. Clamping groove; 43. Second threaded hole; 44. L-shaped vise jaw; 45. Mounting groove; 46. Mating groove; 50. V-shaped vise block; 51. V-shaped jaw; 60. First vise claw; 70. Second vise claw; 80. Third vise claw. Detailed Implementation

[0032] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this utility model.

[0034] Please see Figures 1 to 10 This embodiment provides a quick-release self-centering vise, including a vise base 10, a screw bearing seat 12, a drive screw 20, and two slider bases 30. The screw bearing seat 12 is disposed on the vise base 10, and the drive screw 20 is rotatably disposed on the screw bearing seat 12. The outer peripheral walls of the drive screw 20 on both sides of the screw bearing seat 12 are respectively provided with threaded segments 21 with opposite thread directions. The two slider bases 30 are slidably disposed on the vise base 10, and the two slider bases 30 are respectively threaded onto the two threaded segments 21. Each slider base 30 is detachably mounted with a vise fixing block 40. The two vise fixing blocks 40 are symmetrically arranged with respect to the screw bearing seat 12. The top of the vise fixing block 40 is recessed with a clamping groove 42, and a first vise jaw 60 or a second vise jaw 70 is detachably connected to the clamping groove 42.

[0035] like Figures 1 to 3As shown, in this embodiment, the vise base 10 is provided with a limiting groove 11, the screw bearing seat 12 is disposed in the middle of the limiting groove 11, and the two slider bases 30 are respectively slidably disposed in the limiting groove 11; the two ends of the drive screw 20 extend out of the vise base 10, and the two ends of the drive screw 20 are respectively fixedly connected with drive nuts 22. Secondly, in this embodiment, a limiting bearing hole is formed through the middle of the screw bearing housing 12, and a circumferential rotating part adapted to the limiting bearing hole is provided in the middle of the drive screw 20, so that the drive screw 20 can only be rotated in the circumferential direction on the screw bearing housing 12. For example, an annular groove is formed in the limiting bearing hole of the screw bearing housing 12, and an annular protrusion is provided on the outer periphery of the middle part of the drive screw 20. By designing the screw bearing housing 12 as two symmetrical parts, the annular protrusion of the drive screw 20 can be easily nested in the annular groove to avoid obstruction of the assembly between the screw bearing housing 12 and the drive screw 20. Furthermore, in this embodiment, the two slider bases 30 are respectively provided with internal threaded holes, and the internal threaded holes on the two slider bases 30 correspond to the two threaded segments 21 on the drive screw 20. In this way, the two slider bases 30 are threadedly connected to the two threaded segments 21 of the drive screw 20 through their respective internal threaded holes. Under the limiting action of the limiting groove 11, the two slider bases 30 can move synchronously relative to each other or move in opposite directions when the drive screw 20 is rotated.

[0036] like Figure 4 and Figure 5 As shown, in this embodiment, the two vise fixing blocks 40 are detachably connected to V-shaped vise blocks 50 on opposite sides, and V-shaped jaws 51 are respectively provided on opposite sides of the two V-shaped vise blocks 50. The side of the vise fixing block 40 connected to the V-shaped vise block 50 has a recessed portion of first threaded holes 41. The sidewall of the V-shaped vise block 50 connected to the vise fixing block 40 has a through hole adapted to the first threaded holes 41, allowing a screw to pass through and be screwed into the corresponding first threaded hole 41.

[0037] It can be understood that the V-shaped vise block 50 and the vise fixing block 40 in this embodiment are connected by screws, which can realize quick disassembly or assembly between the two, and the circular workpiece is clamped by the clamping space formed between the V-shaped jaws 51 on the two V-shaped vise blocks 50.

[0038] In this embodiment, the bottom of the clamping groove 42 is recessed and provided with a plurality of second threaded holes 43. The first vise claw 60 or the second vise claw 70 is detachably installed in the second threaded holes 43 by screws. It can be understood that in this embodiment, the first vise claw 60 or the second vise claw 70 is respectively assembled in the clamping groove 42 by screw fixing. When the first vise claw 60 is installed in the clamping groove 42, a clamping space can be formed between the first vise claws 60 on the two vise fixing blocks 40, and the square workpiece can be clamped by the characteristic that there are no racks on the opposite side of the two first vise claws 60. Similarly, the second vise claw 70 can also use the corresponding structural characteristics to clamp the square workpiece.

[0039] Furthermore, the clamping groove 42 has a U-shaped groove structure, and the first vise claw 60 has a long block structure. A second through hole for a screw to pass through is provided on the first vise claw 60. The lower end of the first vise claw 60 is inserted into the clamping groove 42, and first vise teeth are respectively provided on both sides of the first vise claw 60 extending above the clamping groove 42. It can be understood that the clamping force range can be adjusted by utilizing the characteristics of the first vise teeth of the two first vise claws 60. In addition, the second vise claw 70 has a block structure, and a third through hole for a screw to pass through is provided on the second vise claw 70. Two second vise claws 70 are detachably connected to the clamping groove 42; the lower end of the second vise claw 70 is inserted into the clamping groove 42, and second vise teeth are respectively provided on both sides of the second vise claw 70 extending above the clamping groove 42. It can be understood that the clamping force range can be adjusted by utilizing the characteristics of the second vise teeth of the two second vise claws 70.

[0040] like Figure 6 As shown, in order to clamp the cylindrical workpiece, in this embodiment, two third vise claws 80 are detachably connected in the clamping groove 42. The third vise claws 80 are also installed in the clamping groove 42 by means of screws, and the part of the third vise claws 80 that extends out of the clamping groove 42 is provided with an annular third vise claw 80. In this way, when the two vise fixing blocks 40 slide relative to each other, the two third vise claws 80 on each vise fixing block 40 can apply pressure to the outer wall of the cylindrical workpiece respectively, and the cylindrical workpiece is clamped and fixed by the combined action of the four third vise claws 80.

[0041] Additionally, in this embodiment, as Figure 7 and Figure 8As shown, L-shaped vise jaws 44 are respectively provided on opposite sides of the two vise fixing blocks 40. When the two vise fixing blocks 40 are installed in reverse, a clamping space is formed between the L-shaped vise jaws 44 on the two vise fixing blocks 40. Further, in this embodiment, the top of the slider base 30 protrudes upward to form a mounting part 31, and the bottom of the vise fixing block 40 is recessed to form a mounting groove, which is fitted into the mounting part 31. In addition, limit protrusions 32 are symmetrically provided on both sides of the mounting part 31, and the bottom of the vise fixing block 40, located on both sides of the mounting groove, is provided with limit recesses that nest with the limit protrusions 32.

[0042] like Figure 9 and Figure 10 As shown, the mounting portion 31 of the slider base 30 has a V-shaped protrusion 33 on one side near the screw bearing seat 12, and a spring pin 34 is telescopically provided on the other side. Correspondingly, the width of the mounting groove 45 is greater than the width of the mounting portion 31, and the two sides of the mounting groove 45 are respectively provided with mating grooves 46 that are adapted to the protrusion 33; in addition, the inclination of the protrusion 33 is 45°. In this way, when the two vise fixing blocks 40 are installed in opposite directions, the mounting groove 45 is nested on the mounting part 31, and one of the mating grooves 46 of the mounting groove 45 is engaged with the protrusion 33 of the mounting part 31. The other side of the mounting groove 45 is pressed by the spring pin 34 on the mounting part 31. When the two vise fixing blocks 40 approach each other, one of the mating grooves 46 of the mounting groove 45 of the vise fixing block 40 is in contact with the 45° inclined surface of the protrusion 33 on the mounting part 31 and forms a force-bearing surface. The spring pin 34 on the mounting part 31 is pressed against the vise fixing block 40 under the action of its spring and does not loosen. Due to the 45° inclined force-bearing surface, the slider base 30 drives the vise fixing block 40 to move and generates a 45° downward inclined force. That is to say, the more force is used to drive the two vise fixing blocks 40 to move relative to each other, the more the two vise fixing blocks 40 are subjected to the downward force, so that the vise fixing blocks 40 will not tilt upward.

[0043] like Figure 11 As shown, in some embodiments of this utility model, the first vise jaw 60 and the vise fixing block 40 can also adopt an integrally formed structure. That is, the first vise jaw 60 is integrally formed on the top of the vise fixing block 40, and the integrated jaw design makes the connection between the vise fixing block 40 and the first vise jaw 60 reliable and less prone to relative displacement. When the two vise fixing blocks 40 clamp the workpiece, the clamping force between the two first vise jaws 60 is more secure.

[0044] Therefore, the quick-release self-centering vise of this invention does not require disassembling the entire vise. It adapts to clamping different workpieces by quickly replacing the vise jaws or reversing the vise fixing block 40, and offers high center positioning accuracy and convenient operation. Specifically, this invention uses a modular design, forming a clamping groove 42 above the vise fixing block 40, and detachably configuring a first vise jaw 60 or a second vise jaw 70. This allows users to easily select the first vise jaw 60 or the second vise jaw 70 for different workpieces. The first vise jaw 60 and the second vise jaw 70 can be quickly replaced using screws. Furthermore, the first vise jaw 60 can be either equipped with or without first vise teeth, and the second vise jaw 70 can be either equipped with or without second vise teeth, enabling it to adapt to a wider variety of workpiece types. The two vise fixing blocks 40 of this invention are fixed to the slider base 30 with screws, which allows for quick reverse installation of the two vise fixing blocks 40. After reverse installation, the clamping space formed between the L-shaped vise jaws 44 on the two vise fixing blocks 40 can be used to clamp square workpieces. In addition, by connecting V-shaped vise blocks 50 to opposite sides of the two vise fixing blocks 40, the invention allows for clamping of round workpieces through the clamping space formed between the V-shaped jaws 51 on the two V-shaped vise blocks 50. The V-shaped vise blocks 50 can be quickly disassembled or installed by screw connection. Furthermore, by using two threaded segments 21 with opposite thread directions on both sides of the drive screw 20, the invention allows for synchronous relative or opposite movement of the two slider bases 30 by rotating the drive screw 20. The center positioning accuracy is high and the operation is simple.

[0045] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the quick-release self-centering vise of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A quick-release self-centering vise, characterized in that: The vise includes a vise base, a screw bearing housing, a drive screw, and two slider bases. The screw bearing housing is mounted on the vise base, and the drive screw is rotatably mounted on the screw bearing housing. The outer peripheral walls of the drive screw on both sides of the screw bearing housing have threaded sections with opposite thread directions. The two slider bases are slidably mounted on the vise base, and each slider base is threaded onto one of the two threaded sections. A vise fixing block is detachably mounted on each slider base. The two vise fixing blocks are symmetrically arranged relative to the screw bearing housing. A clamping groove is recessed at the top of each vise fixing block, and a detachable clamping groove is provided in the clamping groove. The vise is connected with a first or second vise claw; the top of the slider base protrudes upward to form a mounting part, and the bottom of the vise fixing block is recessed to form a mounting groove, which is fitted into the mounting part; the mounting part of the slider base has a V-shaped protrusion on one side near the screw bearing seat, and a spring pin is telescopically provided on the other side; correspondingly, the width of the mounting groove is greater than the width of the mounting part, and the two sides of the mounting groove are respectively provided with mating grooves that are adapted to the protrusion; the two sides of the mounting part are respectively provided with limiting protrusions, and the bottom of the vise fixing block is provided with limiting recesses on both sides of the mounting groove that are nested with the limiting protrusions.

2. The quick-release self-centering vise according to claim 1, characterized in that: The two vise fixing blocks are detachably connected to V-shaped vise blocks on opposite sides, and V-shaped jaws are provided on opposite sides of the two V-shaped vise blocks.

3. The quick-release self-centering vise according to claim 2, characterized in that: The side of the vise fixing block connected to the V-shaped vise block is recessed and has several first threaded holes. The side wall of the V-shaped vise block connected to the vise fixing block is provided with a first through hole that matches the first threaded holes. The first through hole allows the screw to pass through and the screw threads to be tightened in the corresponding first threaded hole.

4. The quick-release self-centering vise according to claim 2, characterized in that: The bottom of the clamping groove is recessed and has several second threaded holes. The first vise claw or the second vise claw is detachably installed in the second threaded holes by screws.

5. The quick-release self-centering vise according to claim 4, characterized in that: The clamping groove is a U-shaped groove structure, the first vise claw is a long strip structure, a second through hole for the screw to pass through is provided on the first vise claw, the lower end of the first vise claw is inserted into the clamping groove, and first vise teeth are respectively provided on both sides of the first vise claw extending above the clamping groove.

6. The quick-release self-centering vise according to claim 4, characterized in that: The second vise claw is a block structure, and a third through hole for the screw to pass through is provided on the second vise claw. Two second vise claws are detachably connected in the clamping groove. The lower end of the second vise claw is inserted into the clamping groove, and second vise teeth are respectively provided on both sides of the second vise claw extending above the clamping groove.

7. The quick-release self-centering vise according to claim 1, characterized in that: The two vise fixing blocks are respectively provided with L-shaped vise jaws on opposite sides. When the two vise fixing blocks are installed in reverse, a clamping space is formed between the L-shaped vise jaws on the two vise fixing blocks.

8. The quick-release self-centering vise according to claim 1, characterized in that: The vise base is provided with a limiting groove, the screw bearing seat is located in the middle of the limiting groove, and the two slider bases are slidably disposed in the limiting groove; both ends of the drive screw extend out of the vise base, and both ends of the drive screw are fixedly connected with drive nuts.

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