quick-change air locking vise

Abstract

A pneumatic quick-change locking vise includes a vise body with an inner and outer cylinder chamber and an inverted T-shaped slide, with a central through-hole connecting the cylinder chamber; a piston slides within the cylinder chamber, with a piston rod extending through the through-hole; two jaws each have an inverted T-shaped slider linearly sliding within the inverted T-shaped slide, with a pin fixed transversely to each jaw; a drive block is locked to the top of the piston rod, and the drive block has a downward-sloping inward-facing groove facing the jaws, into which the jaws and pins are pushed; thereby, the piston moves upward, driving the two jaws to clamp the workpiece. The increased piston thickness enhances strength, and multiple equally spaced limiting grooves extending inward from the bottom surface can be provided to accurately position each elastic element, allowing for more accurate and uniform application of all elastic forces and a more stable and firm clamping.

Description

quick-change pneumatic locking vise Technical Field

[0001] This invention provides a technical field of vises, particularly a pneumatic quick-change locking vise. When the piston moves upward, it drives the two jaws to clamp the workpiece. In addition, the piston thickness is increased to enhance its strength, and multiple equally divided limiting grooves are provided to position each elastic element, so that all elastic forces are applied more accurately and evenly, and the clamping is more stable and firm. Prior Technology

[0002] Note that this invention is a reinvention of the inventor's patent application No. 112140474, Certificate No. I847895, "Pneumatic Quick-Change Locking Vise". The prior invention includes: a vise body, the vise body having a cylinder chamber with a downward opening inside, the vise body having an inverted T-shaped slide rail, and a through hole in the center of the vise body leading to the cylinder chamber; a bottom cover, the bottom cover being assembled to the bottom of the vise body, the bottom cover being able to seal the opening of the cylinder chamber; a piston, the piston being slidably disposed in the cylinder chamber, and being able to move upward or downward driven by pressurized gas, the piston having a piston rod extending upward through the through hole; and a plurality of elastic elements disposed between the top surface of the piston and the top surface of the cylinder chamber, which can press the piston downward under normal conditions. Each of the two grippers has an inverted T-shaped slider integrally formed at its bottom, which slides linearly in the inverted T-shaped slide. Each of the two inverted T-shaped sliders has a working groove on its adjacent surface. A pin is transversely fixed at the working groove of each gripper. A drive block is also provided. The drive block has a through hole for a bolt to pass through and lock to a screw hole at the top of the piston rod. The drive block has a protrusion and an upwardly and inwardly sloping groove on each of the two opposite sides, i.e., towards the working groove of each gripper. The gripper and the pin can be pushed into the opening of the sloping groove. A spring positioning bead is protruding on the top surface of the vise body, and a positioning hole is provided on the bottom surface of the gripper corresponding to the spring positioning bead. When the pin is in the opening, the positioning hole is positioned at the spring positioning bead.

[0003] However, the upward-sloping groove of the drive block can only drive the two grippers to clamp the workpiece when the piston moves downward. This invention, based on the previous invention, further increases the ability of the two grippers to clamp the workpiece when the piston moves upward. In addition, the piston thickness of this invention is increased, which enhances its strength. Furthermore, multiple equally divided limiting grooves are set to position each elastic element, so that all elastic forces are applied more accurately and evenly, and the clamping is more stable and firm.

[0004] Therefore, in view of the problems existing in the above-mentioned conventional structures, how to develop a more ideal and practical innovative structure is what consumers eagerly expect, and it is also the goal and direction that relevant businesses must strive to achieve through research and development.

[0005] In view of this, the creator, based on years of experience in manufacturing, developing and designing related products, has designed and carefully evaluated the above objectives, and finally created a work that is truly practical. Summary of the Invention

[0006] The main purpose of this invention is to provide a pneumatic quick-change locking vise. When the piston moves upward, it drives the two jaws to clamp the workpiece. In addition to increasing the thickness of the piston to enhance its strength, it is also equipped with multiple equally divided limiting grooves. These limiting grooves position each elastic element, so that all elastic forces are applied more accurately and evenly, resulting in a more stable and firm clamping.

[0007] To achieve the above objectives, this invention provides a pneumatic quick-change locking vise, comprising: a vise body with a downward-opening cylinder chamber inside, an inverted T-shaped slide rail on the vise body, and a through hole in the center of the vise body leading to the cylinder chamber; a bottom cover assembled to the bottom of the vise body, which seals the opening of the cylinder chamber; a piston slidably disposed within the cylinder chamber, capable of moving upward or downward by pressurized gas, a piston rod extending upward through the through hole, the piston being thickened and having a plurality of limiting grooves on its bottom surface; and a plurality of elastic elements disposed in the same number of limiting grooves, the bottom surfaces of the elastic elements abutting against the bottom cover. Under normal conditions, the piston is pushed upwards; each of the two grippers has an inverted T-shaped slider at its bottom, which slides linearly in the inverted T-shaped slide. Each gripper is fixedly fitted with a pin rod; a drive block is locked to the top of the piston rod. The drive block has an inwardly sloping groove facing each gripper. The gripper and the pin rod are pushed into the opening of the groove. Accordingly, when the piston moves upwards, it drives the two grippers to clamp the workpiece. In addition to increasing the thickness of the piston, which enhances its strength, multiple equally divided limiting grooves are also provided. These limiting grooves position each elastic element, making all elastic forces more accurate and uniform, and the clamping more stable and firm.

[0008] Regarding the techniques, methods, and effects employed in this invention, a preferred embodiment is described below in detail with accompanying drawings. It is believed that the above-mentioned objectives, structure, and features of this invention can be understood in depth and in detail from this description. Simple Explanation of the Diagram

[0009]

[0010] [Figure 1] is a three-dimensional schematic diagram of one embodiment of this invention.

[0011] Figure 2 is a three-dimensional exploded view of one embodiment of this invention.

[0012] Figure 3 is a three-dimensional exploded view from a low angle, representing one embodiment of this invention.

[0013] Figure 4 is a cross-sectional view of the loose state of one embodiment of this invention.

[0014] Figure 5 is a planar cross-sectional view of the clamping state in one embodiment of this invention. Implementation

[0015] This invention relates to the designer of a pneumatic quick-change locking vise.

[0016] To enable your review committee to gain a better understanding of the purpose, features, and effects of this work, the following detailed description, along with accompanying diagrams, is provided:

[0017] Referring to Figures 1 to 5, this invention provides a pneumatic quick-change locking vise, which includes:

[0018] A vise body 10, the vise body 10 having a cylinder chamber 11 with a downward opening 111 inside, the vise body 10 having an inverted T-shaped slide 12, and a through hole 13 in the center of the vise body 10 connecting to the cylinder chamber 11;

[0019] A bottom cover 20 is attached to the bottom of the vise body 10, and the bottom cover 20 seals the opening 111 of the cylinder chamber 11;

[0020] A piston 30 is slidably disposed within the cylinder chamber 11 and is driven by pressurized gas to move upward or downward. A piston rod 31 is provided on the piston 30 and extends out through the through hole 13. The piston 30 is thickened and has a plurality of limiting grooves 32 recessed inward on its bottom surface.

[0021] A plurality of elastic elements 40, the number of which is the same as the number of limiting grooves 32, the plurality of elastic elements 40 being disposed in the limiting grooves 32 on the bottom surface of the piston 30, the bottom surface of the plurality of elastic elements 40 abutting against the bottom cover 20, so that the piston 30 can be pushed upward under normal conditions;

[0022] Each of the two grippers 50 and 60 has an inverted T-shaped slider 51 and 61 at its bottom, which slides linearly in the inverted T-shaped slide rail 12. Each of the two inverted T-shaped sliders 51 and 61 has a working groove 511 and 611 on its adjacent surface. A pin 52 and 62 are fixedly mounted transversely through the working groove 511 and 611 of each gripper 50 and 60.

[0023] A drive block 70 is provided with a through hole 73, through which a bolt 74 is inserted and locked to a screw hole 311 at the top of the piston rod 31. The drive block 70 is provided with a protrusion 701 and an opening groove 71 that slopes downward and inward at each of the working grooves 511 and 611 of each of the grippers 50 and 60 on opposite sides. The grippers 50 and 60 and the pins 52 and 62 can be pushed into the opening 711 of the opening groove 71.

[0024] Accordingly, the piston 30 moves upward to push the drive block 70 upward, and the two open inclined slots 71 push the two pins 52 and 62 together with the two jaws 50 and 60 toward the center of the vise body 10, thereby completing the clamping action of one of the workpieces 90 between the two jaws 50 and 60.

[0025] The aforementioned pneumatic quick-change locking vise, wherein the jaws 50 and 60 and the pins 52 and 62 are pushed into the opening 711 of the opening groove 71, and a spring positioning bead 16 is protruding from the top surface of the vise body 10, and a positioning hole 53 and 63 is provided on the bottom surface of the jaws 50 and 60 corresponding to the spring positioning bead 16, so that the spring positioning bead 16 can position the positioning hole 53 and 63 when the jaws 50 and 60 reach the positioning position.

[0026] The aforementioned pneumatic quick-change locking vise includes a drive block 70 extending to both sides and having a guide slider 72 on each side. The vise body 10 has a vertical guide rail 14 corresponding to the guide slider 72, and the guide rail 14 is used to guide the guide slider 72 to slide.

[0027] The aforementioned pneumatic quick-change locking vise has a central stop bar 80 above the drive block 70. The central stop bar 80 has a hole 81 on each side, through which a screw 82 is passed and locked to two screw holes 15 on the vise body 10.

[0028] Referring to Figures 4 and 5, the grippers 50 and 60 are designed to fit the shape of the workpiece 90. When the pins 52 and 62 of the two grippers 50 and 60 are pushed into the position of the opening 711 of the inclined groove 71 of the drive block 70, the positioning holes 53 and 63 are positioned with the spring positioning ball 16. At this time, a loose gap A is maintained between the two grippers 50 and 60, and the workpiece 90 can be placed in quite easily (as shown in Figure 4). When the pneumatic drive piston 30 is activated, the inclined groove 71 moves upward, forcing the grippers 50 and 60 and the two pins 52 and 62 to move towards the center to a clamping gap B. At this time, the workpiece 90 is clamped by the two grippers 50 and 60.

[0029] As can be seen from the above, the pneumatic quick-change locking vise of this invention is indeed the first of its kind in the industry and meets the novelty requirements of a utility model patent. Its comprehensive innovative design meets the progressiveness requirements of a utility model patent. When the piston moves upward, it drives the two jaws to clamp the workpiece. In addition to increasing the thickness of the piston, its strength is enhanced, and multiple equally divided limiting grooves are set. The limiting grooves position each elastic element, so that all elastic forces are applied more accurately and evenly, and the clamping is more stable and firm, which meets the requirements of better industrial applicability.

[0030] The foregoing description focuses on the preferred embodiments of this invention and their technical features; however, those skilled in the art can make changes and modifications to this invention without departing from its spirit and principles, and such changes and modifications should all be covered within the scope defined by the following claims.

[0031] In conclusion, this invention provides a pneumatic quick-change locking vise, which has indeed achieved all the objectives of this invention. Furthermore, the spatial form of its combined structure has not been seen in similar products, nor has it been disclosed before the application, thus meeting the requirements of the Patent Law. Therefore, this application is filed in accordance with the law.

[0032]

[0033] 10:Vise body

[0034] 11: Cylinder Chamber

[0035] 111: Opening

[0036] 12: Inverted T-shaped slide

[0037] 13: Perforation

[0038] 14: Guiding Track

[0039] 15: Screw hole

[0040] 16: Spring positioning ball

[0041] 20: Bottom Cover

[0042] 30: Piston

[0043] 31: Piston rod

[0044] 311: Screw hole

[0045] 32: Limiting groove

[0046] 40: Elastic element

[0047] 50: Gripper

[0048] 51: Inverted T-shaped slider

[0049] 511: Working slot

[0050] 52: Pin lever

[0051] 53: Positioning hole

[0052] 60: Gripper

[0053] 61: Inverted T-shaped slider

[0054] 611: Working slot

[0055] 62: Pin lever

[0056] 63: Positioning hole

[0057] 70: Driver Block

[0058] 701:convex part

[0059] 71: Opening Inclined Groove

[0060] 711: Opening

[0061] 72: Guide slider

[0062] 73: Through hole

[0063] 74: Bolt

[0064] 80: Center stop bar

[0065] 81: Hole

[0066] 82: Screws

[0067] 90: Workpiece

[0068] A: Loosening spacing

[0069] B: Clamping Spacing

Claims

1. A pneumatic quick-change locking vise, comprising: A vise body, the vise body has a cylinder chamber with a downward opening inside, the vise body has an inverted T-shaped slide, and the vise body has a through hole in the center to connect to the cylinder chamber; A bottom cover, which is attached to the bottom of the vise body, and seals the opening of the cylinder chamber; a piston, which slides inside the cylinder chamber and is driven by pressurized gas to move upward or downward, with a piston rod extending upward through the through hole, the piston being thickened and having a plurality of limiting grooves recessed inward on its bottom surface; a plurality of elastic elements, the number of which is the same as the number of limiting grooves, the plurality of elastic elements being located in the limiting grooves on the bottom surface of the piston, the bottom surfaces of which abut against the bottom cover, and pushing the piston upward under normal conditions; The vise comprises two grippers, each with an inverted T-shaped slider linearly sliding along the bottom of the gripper. A working groove is provided on the adjacent surfaces of the two inverted T-shaped sliders. A pin is horizontally fixed to the working groove of each gripper. A drive block has a through hole for a bolt to pass through and lock to a screw hole at the top of the piston rod. The drive block has a protrusion and an inwardly sloping groove on each of the two opposite sides of the drive block, facing the working groove of each gripper. The gripper and the pin are pushed into the opening of the inwardly sloping groove. A spring positioning bead protrudes from the top surface of the vise body, and a positioning hole is provided on the bottom surface of the gripper corresponding to the spring positioning bead. When the pin is in the opening, the positioning hole is positioned at the spring positioning bead.

2. The pneumatic quick-change locking vise as described in claim 1, wherein the drive block extends to both sides and is provided with a guide slider, and the vise body is provided with a vertical guide rail corresponding to the guide slider, the guide rail being used to guide the guide slider to slide.

3. The pneumatic quick-change locking vise as described in claim 2, wherein a central stop bar is provided above the drive block, and a hole on each side of the central stop bar is respectively threaded through a screw and locked to two screw holes on the vise body.