Vertical lathe heightening clamp

Abstract

The utility model relates to a clamp, in particular to a vertical lathe heightening clamp. The clamp comprises a lifting assembly, a waste discharging structure and a clamp body, the lifting assembly comprises an air cylinder and a base which are arranged up and down, the base is placed at the bottom of the air cylinder, the base is movably connected with the air cylinder in a sleeved mode through three guide columns, a piston is arranged in the air cylinder, a piston rod is fixedly connected to the center of the upper portion of the piston, and a spring is arranged below the piston. The clamp body comprises a chuck, a clamping jaw and a transmission structure, the waste discharging structure is placed on the upper surface of the air cylinder, and the waste discharging structure is fixedly connected with the clamp body in a sleeving mode. Automatic clamping and overall lifting of the clamping jaws are achieved through the air cylinder so as to adapt to different workpiece sizes, the machining efficiency is improved, the stability of the machining process is enhanced, the waste discharging structure is additionally arranged in the middle and used for discharging waste falling on the clamp during machining, the manual cleaning frequency is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a lathe clamp, in particular to a vertical lathe heightening clamp. Background Art

[0002] Pneumatic clamps are based on the principle of pneumatic systems, using the power of compressed air to drive mechanical movement. Current pneumatic clamps use air supplied from the lower part of the cylinder to push the piston forward, causing the jaws to move inward to achieve clamping. When processing is completed, air supplied from the upper part of the cylinder pushes the piston back, causing the jaws to move outward to loosen the workpiece. At the same time, if you want to increase the height of the clamp, you need to add another cylinder at the bottom, which wastes materials and may cause confusion in the air pipe lines due to the increase in cylinders. When processing automatically, it will also make the processing procedure more complicated and time-consuming. Utility Model Content

[0003] The purpose of the utility model is to provide a vertical lathe heightening clamp to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides a vertical lathe heightening clamp, comprising a clamp body, the clamp body comprising a chuck and a plurality of groups of clamping jaw structures, a lifting assembly being arranged at the bottom of the clamp body, and characterized in that: the clamping jaw structure comprises a clamping jaw and a clamping jaw sliding block, the clamping jaw is fixedly connected to the clamping jaw sliding block, a sliding groove is provided on the chuck corresponding to the clamping jaw sliding block, and the clamping jaw sliding block is slidably connected to the sliding groove; the lifting assembly comprises a cylinder and a base arranged up and down, a piston is arranged inside the cylinder, a piston rod is fixedly connected to the center above the piston, and a transmission structure is arranged between the piston rod and the clamping jaw sliding block;

[0005] Wherein, the transmission structure comprises a connecting member and a transmission block, the clamping jaw sliding block is rotationally connected to the transmission block via the connecting member, and the transmission block is rotationally connected to the piston rod.

[0006] As a further improvement of the present technical solution, the base includes a chassis and three guide pillars, the three guide pillars are fixedly connected to the top of the chassis in the orientations of the three angles of an isosceles triangle, and the three guide pillars are equidistant from the center of the chassis, and holes corresponding to the positions of the three guide pillars are provided at the bottom of the cylinder, the three guide pillars are movably connected to the cylinder through the holes at the bottom of the cylinder, and move up and down by a piston arranged inside the cylinder.

[0007] As a further improvement of the technical solution, a first discharge hole is provided between each two clamping jaws on the chuck, and a waste discharge structure is fixedly sleeved under the chuck, wherein:

[0008] A through hole is provided in the middle of the waste discharge structure corresponding to the transmission block position for the up and down movement of the transmission block, a reserved groove is provided at the waste discharge structure corresponding to the connecting piece position for the rotational movement of the connecting piece and to prevent the waste from affecting the movement of the connecting piece when being discharged, a second discharge hole is provided on the waste discharge structure corresponding to the position of the first discharge hole, the second discharge hole is opened downward and is bent at the end to be connected with the reserved groove, and a slope is provided at the bottom of the waste discharge structure corresponding to the reserved groove.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] In the vertical lathe heightening fixture, the cylinder set at the bottom only needs to be connected to one air pipe. When the upper part is inhaled, the piston is squeezed downward to drive the piston rod and the transmission structure connected to it to move downward. The direction of the force is changed by the transmission structure to clamp the jaws. At the same time, the piston pushes the guide column below to rise. When the processing is completed, the upper part of the cylinder stops taking in air and releases the gas. The spring under the piston pushes the piston to reset. The piston rod and the transmission structure connected to it move upward, and the jaws are released. At the same time, the cylinder and the fixture structure above the cylinder fall back under the influence of gravity, and the fixture is reset. The clamping and lifting are achieved through the movement of the same cylinder, which reduces the difficulty of installation and reduces the time wasted in the process due to the action of multiple cylinders during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the clamp body of the utility model;

[0013] Figure 3 This is a schematic diagram of the waste discharge structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the lifting assembly structure of the utility model;

[0015] The meaning of each number in the figure is:

[0016] 100, fixture body; 110, chuck; 120, jaw structure; 121, jaw; 122, jaw sliding block; 130, transmission structure; 131, connecting piece; 132, transmission block; 140, first discharge hole; 200, waste discharge structure; 210, second discharge hole; 220, ramp; 300, cylinder; 310, piston; 320, piston rod; 330, spring; 400, base; 410, chassis; 420, guide column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In addition, in the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0020] See also Figure 1-Figure 4As shown, the utility model provides a vertical lathe heightening fixture, including a lifting assembly, a waste discharge structure 200 and a fixture body 100, the lifting assembly includes a base 400 and a cylinder 300, the base 400 includes a chassis 410 and three guide pillars 420, the three guide pillars 420 are fixedly connected above the chassis 410 in the orientation of the three angles of an isosceles triangle, and the three guide pillars 420 are at an equal distance from the center of the chassis 410, the bottom of the cylinder 300 is provided with holes corresponding to the positions of the three guide pillars 420, the three guide pillars 420 are movably connected to the cylinder 300 through the holes at the bottom of the cylinder 300, and the cylinder 300 0 is provided with a piston 310 inside, a piston rod 320 is fixedly connected to the center above the piston 310, a spring 330 is provided below, a hole connecting the inner cavity is provided outside the cylinder 300 for gas in and out, when compressed air enters the upper half of the cylinder 300, the piston 310 moves downward to cooperate with the guide column 420 to lift the cylinder 300, so as to achieve overall elevation, the fixture body 100 includes a chuck 110, a clamping jaw structure 120 and a transmission structure 130, the chuck 110 is provided with a first discharge hole 140 and a sliding groove, the clamping jaw structure 120 includes a clamping jaw 121 and a clamping jaw sliding block 122, and the clamping jaw 1 21 can be connected to the clamping jaw sliding block 122 by bolts, and the clamping jaw sliding block 122 is clamped with the sliding groove. The transmission structure 130 includes a connecting member 131 and a transmission block 132. The clamping jaw sliding block 122 is rotatably connected to the connecting member 131 and the transmission block 132. The transmission block 132 is rotatably connected to the piston rod 320. When the piston 310 moves downward, the transmission block 132 is driven to move downward, so that the connecting member 131 rotates and drives the clamping jaw sliding block 122 to slide inward in the sliding groove to achieve clamping of the clamping jaw 121. A waste discharge structure 200 is fixedly sleeved below the chuck 110, and the waste discharge structure A through hole is provided in the middle of the structure 200 corresponding to the transmission block 132 for the up and down movement of the transmission block 132, and a reserved groove is provided at the position of the waste discharge structure 200 corresponding to the connecting piece 131 for the rotational movement of the connecting piece 131, and to prevent the waste from affecting the movement of the connecting piece 131 during discharge. The waste generated during processing will slide into the slope 220 inside the waste discharge structure 200 through the first discharge hole 140 and the second discharge hole 210, and then slide out of the fixture through the slope 220. The position of the slope 220 is fixed, and a waste collection device can be installed below the slope 220 to facilitate rapid recycling of waste.

[0021] Working principle:

[0022] The heightening fixture is installed on the vertical lathe workbench through the bottom screw hole, the air joint is installed on the air hole of the upper half of the cylinder 300 to connect the air pipe and then connect the solenoid valve, the workpiece is placed firmly on the fixture, the fixture is started to clamp, the solenoid valve is opened, and compressed air enters the upper half of the cylinder 300. The piston 310 inside the cylinder 300 moves downward, squeezing the guide column 420 on the base 400 downward, and the cylinder 300 moves upward to achieve overall elevation. At the same time, the piston 310 drives the piston rod 320 fixed thereon to move downward, so that the transmission block 132 connected to the piston rod 320 also moves upward. The jaw structure 120 moves downward, but it cannot move downward because it is stuck in the sliding groove of the chuck 110, so it and the transmission block 132 change the direction of force through the rotational movement of the connecting piece 131, so that it moves inward to achieve clamping. When the processing is completed, the solenoid valve is closed, and the compressed air in the upper half of the cylinder 300 is discharged. The spring 330 in the lower half of the cylinder 300 pushes the piston 310 to move upward, driving the transmission block 132 connected to the piston rod 320 to move upward. At this time, the connecting piece 131 rotates in the opposite direction, causing the jaw 121 to move outward to release the workpiece.

[0023] In addition, a waste discharge structure 200 is fixedly sleeved under the clamp body 100, and a through hole is provided in the middle of the waste discharge structure 200 corresponding to the position of the transmission block 132 for the up and down movement of the transmission block 132, and a reserved groove is provided at the position of the waste discharge structure 200 corresponding to the connecting piece 131 for the rotational movement of the connecting piece 131, and to prevent the waste from affecting the movement of the connecting piece 131 during discharge, and a second discharge hole 210 corresponding to the position of the first discharge hole 140 is provided on the waste discharge structure 200, and the second discharge hole 210 is opened downward and bent toward the reserved groove at the end, thereby connecting with it, and a slope 220 is provided at the bottom of the waste discharge structure 200 corresponding to the reserved groove, and the waste generated during the turning process of the workpiece will enter the waste discharge structure 200 through the discharge hole, and then be discharged to the workbench through the slope 220, so as to avoid the waste from accumulating on the clamp and affecting the processing, and a waste collection device can be installed on the workbench below the slope 220 to reduce the difficulty and frequency of manual cleaning and increase work efficiency.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vertical lathe heightening fixture, comprising a fixture body (100), wherein the fixture body (100) comprises a chuck (110) and a plurality of groups of clamping jaw structures (120), and a lifting assembly is arranged at the bottom of the fixture body (100), characterized in that: The clamping jaw structure (120) comprises a clamping jaw (121) and a clamping jaw sliding block (122), wherein the clamping jaw (121) is fixedly connected to the clamping jaw sliding block (122), a sliding groove is provided on the chuck (110) corresponding to the clamping jaw sliding block (122), and the clamping jaw sliding block (122) is slidably connected to the sliding groove; The lifting assembly comprises a cylinder (300) and a base (400) arranged vertically, a piston (310) is arranged inside the cylinder (300), a piston rod (320) is fixedly connected at the center above the piston (310), a spring (330) is arranged at the center below the piston (310), and a transmission structure (130) is arranged between the piston rod (320) and the clamping claw sliding block (122); The transmission structure (130) comprises a connecting member (131) and a transmission block (132); the clamping jaw sliding block (122) is rotationally connected to the connecting member (131) and the transmission block (132); and the transmission block (132) is rotationally connected to the piston rod (320).

2. The vertical lathe heightening fixture according to claim 1 is characterized in that: The base (400) comprises a chassis (410) and three guide pillars (420); the three guide pillars (420) are fixedly connected above the chassis (410) in the orientations of the three corners of an isosceles triangle, and the three guide pillars (420) are equidistant from the center of the chassis (410); holes corresponding to the positions of the three guide pillars (420) are opened at the bottom of the cylinder (300); and the three guide pillars (420) are movably connected to the holes opened at the bottom of the cylinder (300).

3. The vertical lathe heightening fixture according to claim 1 is characterized in that: A first discharge hole (140) is provided between each two clamping jaws (121), and a waste discharge structure (200) is fixedly sleeved below the chuck (110), wherein: A through hole is provided in the middle of the waste discharge structure (200) at a position corresponding to the transmission block (132) for the transmission block (132) to move up and down, and a reserved groove is provided at a position corresponding to the connection piece (131) for the connection piece (131) to rotate.

4. The vertical lathe heightening fixture according to claim 3 is characterized in that: The waste discharge structure (200) is provided with a second discharge hole (210) corresponding to the position of the first discharge hole (140); the second discharge hole (210) is opened downward and is bent toward the reserved groove at the end to communicate therewith; a slope (220) is provided at the bottom of the waste discharge structure (200) corresponding to the reserved groove.

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