Tool clamp for lathe

Abstract

The utility model relates to the field of machining, and particularly discloses a tool clamp for a lathe, which comprises a base, a supporting mechanism, a clamping mechanism, an adjusting mechanism and a workpiece positioning block, a groove matched with the positioning boss and a pin hole corresponding to the positioning pin hole are formed in the bottom of the supporting structure, and the supporting structure is vertically fixed to the positioning boss through a positioning pin and a bolt; the clamping mechanism comprises a fixed bottom plate and two movable pressing plates, and a movable clamping block is arranged on the fixed bottom plate in a sliding mode. The two movable pressing plates are correspondingly arranged on the two sides of the movable clamping block, and the two movable pressing plates and the movable clamping block jointly form a concave structure. The adjusting mechanism comprises a plurality of compression screws, compression bolts and pin shafts. The utility model aims to solve the problems of poor adaptability, non-uniform clamping force and tedious clamping and dismounting of the existing tool clamp.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, in particular to a tool fixture for lathe. BACKGROUND

[0002] In the lathe machining process, the fixture is the key device for ensuring the accurate positioning and firm clamping of workpieces. The existing lathe fixture has many deficiencies, such as low positioning accuracy, which is difficult to meet the machining requirements of high-precision parts; uneven clamping force distribution, which leads to displacement or deformation of the workpiece during machining; complicated clamping operation, which consumes a lot of time and affects production efficiency; and the workpiece positioning block of the fixture is inconvenient to replace, which does not have universality, increasing the production cost and management difficulty.

[0003] Therefore, it is urgent to develop a tool fixture for lathe to solve the above problems. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a tool fixture for lathe, aiming at solving the problems of poor adaptability, uneven clamping force and complicated clamping and dismounting of the existing tool fixture.

[0005] In one aspect, the utility model provides a tool fixture for lathe, comprising:

[0006] The base is installed on the main shaft chuck of the lathe, and the base is disc-shaped, with a positioning boss and a positioning pin hole on the surface;

[0007] The support structure is provided with multiple roots, and the bottom of the support structure is provided with a groove matched with the positioning boss and a pin hole corresponding to the positioning pin hole, and the support structure is vertically fixed on the positioning boss through a positioning pin and a bolt;

[0008] The clamping mechanism is provided on the base, and the clamping mechanism comprises a fixed bottom plate and two movable pressing plates, a movable clamp block is slidably arranged on the fixed bottom plate, and two movable pressing plates are correspondingly arranged on the two sides of the movable clamp block, and the two movable pressing plates and the movable clamp block jointly form a concave structure;

[0009] The adjusting mechanism comprises a plurality of pressing screws, pressing bolts and pin shafts;

[0010] The workpiece positioning block is arranged in the concave structure, and the workpiece positioning block is installed on the support structure through a bolt;

[0011] The support structure vertically penetrates the movable pressing plate, one end of the movable pressing plate is hinged to the support structure through the pin shaft, the other end of the movable pressing plate is fixedly installed on the support structure through a positioning bolt, and the pressing screw transversely penetrates the movable pressing plate and cooperates with the pressing bolt.

[0012] Further, the support structure is provided with a threaded hole matched with the positioning bolt, and the compression screw is matched with the compression bolt to provide clamping force for the movable pressing plate.

[0013] Further, the support structure comprises a first support column and a second support column.

[0014] The first support column is provided with two first support columns for supporting two movable pressing plates.

[0015] The second support column is provided with two second support columns for mounting the workpiece positioning block.

[0016] Further, the surface of the fixed bottom plate is provided with a sliding groove, and the movable clamp block slides on the fixed bottom plate through the sliding groove.

[0017] Further, the adjusting mechanism further comprises a plurality of bolt columns matched with the threaded holes arranged on the upper and lower surfaces of the movable clamp block, and the two sides of the movable clamp block are provided with a plurality of compression rods.

[0018] Further, the two movable pressing plates and the two first support columns are rotatably connected through the pin shaft.

[0019] Further, a spring is arranged between the two movable pressing plates and the workpiece positioning block.

[0020] Further, the movable clamp block is fixed on the fixed bottom plate through the fixing bolt and the fixing screw.

[0021] Further, the fixed bottom plate comprises a vertical fixed plate and a horizontal fixed plate, and the vertical fixed plate and the horizontal fixed plate are fixedly connected through a triangular plate.

[0022] Further, an arc-shaped baffle is arranged on the side of the base away from the fixed bottom plate.

[0023] Compared with the existing tooling fixture for lathe, the tooling fixture for lathe has the following beneficial effects:

[0024] The tooling fixture for lathe provided by the utility model effectively improves the positioning accuracy of the workpiece, meets the machining requirements of high-precision parts through the precise cooperation of the positioning boss on the base, the support structure and the movable pressing plate.

[0025] By arranging the compression bolt and the compression screw on the movable pressing plate, the workpiece can be effectively compressed, displacement or deformation of the workpiece in the machining process is avoided, and the machining quality is ensured.

[0026] By arranging the pin shaft, the movable pressing plate and the support structure are hinged, the clamping operation is simple and fast, the clamping time is greatly shortened, and the production efficiency is improved.

[0027] By setting the detachable workpiece positioning block, the clamp can adapt to workpieces of various shapes and sizes, reducing the types and replacement frequency of the clamp, reducing production cost and management difficulty, and improving the versatility of the clamp. BRIEF DESCRIPTION OF DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Furthermore, the same reference numerals are used throughout the various drawings to designate similar or equivalent parts. In the drawings:

[0029] Figure 1 A perspective view of a tooling fixture for a lathe is provided for the embodiment of the present application;

[0030] Figure 2 A right view of a tooling fixture for a lathe is provided for the embodiment of the present application;

[0031] Figure 3 A top view of a tooling fixture for a lathe is provided for the embodiment of the present application;

[0032] In the figure: 1 - base; 11 - positioning boss; 12 - arc-shaped baffle; 2 - first support column; 3 - second support column; 4 - movable pressing plate; 41 - pressing screw; 42 - pressing bolt; 43 - pin shaft; 44 - positioning bolt; 5 - fixed bottom plate; 51 - sliding groove; 52 - fixed bolt; 53 - fixed screw; 6 - movable clamping block; 61 - bolt column; 62 - pressing rod; 7 - workpiece positioning block; 8 - spring. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0034] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] The terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply relative importance or a number of the indicated technical features. Thus, features defined with "first", "second" or "third" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Referring to Figures 1-3 As shown in the drawings, the embodiment provides a tool clamp for lathe, which comprises a base 1, a supporting mechanism, a clamping mechanism, an adjusting mechanism and a workpiece positioning block 7.

[0038] Specifically, the base 1 is mounted on the main shaft chuck of the lathe, the base 1 is disc-shaped, and the surface is provided with a positioning boss 11 and a positioning pin hole.

[0039] It can be understood that the disc-shaped base 1 can provide a stable support foundation for the entire clamp.

[0040] Specifically, the supporting structure is provided with a plurality of supporting structures, the bottom of the supporting structure is provided with a groove matched with the positioning boss 11 and a pin hole corresponding to the positioning pin hole, and the supporting structure is vertically fixed on the positioning boss 11 through the positioning pin and the bolt.

[0041] Specifically, the clamping mechanism is arranged on the base 1, the clamping mechanism comprises a fixed bottom plate 5 and two movable pressing plates 4, the movable clamping block 6 is slidably arranged on the fixed bottom plate 5; the two movable pressing plates 4 are correspondingly arranged on the two sides of the movable clamping block 6. The two movable pressing plates 4 and the movable clamping block 6 jointly form a concave structure.

[0042] It can be understood that the plurality of supporting structures can support the movable pressing plate and transmit the clamping force.

[0043] Specifically, the adjusting mechanism comprises a plurality of pressing screws 41, pressing bolts 42 and pin shafts 43.

[0044] Specifically, the workpiece positioning block 7 is arranged in the concave structure, and the workpiece positioning block 7 is mounted on the supporting structure through the bolt.

[0045] Specifically, the support structure vertically penetrates the movable pressing plate 4, one end of the movable pressing plate 4 is hinged with the support structure through a pin shaft 43, the other end of the movable pressing plate 4 is installed on the support structure through a positioning bolt 44, and the pressing screw 41 penetrates the movable pressing plate 4 in the transverse direction and cooperates with the pressing bolt 42.

[0046] Specifically, the support structure is provided with a threaded hole matched with the positioning bolt 44.

[0047] It can be understood that the movable pressing plate 4 provides a pressing force for the workpiece positioning block 7 through cooperation of the pressing bolt 42 and the pressing screw 41.

[0048] It can be understood that the movable pressing plate 4 can be flexibly rotated on the support structure around the hinge point through the pin shaft 43.

[0049] It can be seen that the movable clamping block 6 and the movable pressing plate 4 can be moved, and the workpiece positioning block 7 can be conveniently assembled and disassembled through cooperation of the movement of the two. So that the clamp can adapt to workpieces of various shapes and sizes, reduce production cost and management difficulty, and greatly improve the universality of the clamp.

[0050] Referring to Figure 2 It is shown that in some embodiments of the application, the support structure includes a first support column 2 and a second support column 3.

[0051] Specifically, the first support column 2 is provided with two, which are used for supporting two movable pressing plates 4; the second support column 3 is provided with two, which are used for installing workpiece positioning blocks 7.

[0052] Referring to Figure 1 It is shown that in some embodiments of the application, a sliding groove 51 is formed on the surface of the fixed bottom plate 5.

[0053] Specifically, the movable clamping block 6 slides on the fixed bottom plate 5 through the sliding groove 51.

[0054] It can be understood that the movable clamping block 6 can move up and down in the sliding groove 51.

[0055] Referring to Figures 1-2 It is shown that in some embodiments of the application, the adjusting mechanism further includes a plurality of bolt columns 61.

[0056] Specifically, the bolt column 61 cooperates with the threaded hole arranged on the upper and lower surfaces of the movable clamping block 6, and the movable clamping block 6 is provided with a plurality of pressing rods 62 on both sides.

[0057] It can be understood that the bolt column 61 is used for fixing the movable clamping block 6, and the pressing rod 62 is used for bearing the clamping force exerted by the pressing bolt 42.

[0058] Referring to Figures 1-3As shown, in some embodiments of this application, the two movable pressure plates 4 and the two first support columns 2 are rotatably connected by pins 43.

[0059] See Figure 3 As shown, in some embodiments of this application, a spring 8 is provided between the two movable pressure plates 4 and the workpiece positioning block 7.

[0060] Understandably, spring 8 acts as a buffer, reducing the impact of vibration on the fixture and workpiece positioning block 7, facilitating the provision of uniform clamping force, which helps improve machining accuracy, while also protecting the fixture's own structure and extending its service life.

[0061] See Figures 2-3 As shown, in some embodiments of this application, the movable clamping block 6 is fixed to the fixed base plate 5 by fixing bolts 52 and fixing screws 53.

[0062] Understandably, when the fixture is being processed, the movable clamping block 6 is fixed to the fixed base plate 5 by fixing bolts 52 and fixing screws 53. After processing is completed, the fixing bolts 52 are turned in the opposite direction to separate them from the fixing screws 53, so that the movable clamping block 6 can be moved up and down, which facilitates the loading and unloading of the workpiece positioning block 7.

[0063] See Figures 2-3 As shown, in some embodiments of this application, the fixed base plate 5 includes a vertical fixed plate and a horizontal fixed plate, which are fixedly connected by a triangular plate.

[0064] It is understandable that using triangular plates to fix the vertical and horizontal fixing plates improves the stability of the base plate.

[0065] See Figure 1 and 3 As shown, in some embodiments of this application, an arc-shaped baffle 12 is provided on the side of the base 1 away from the fixed base plate 5.

[0066] Understandably, setting the arc-shaped baffle 12 can better protect the workpiece and improve the safety of the fixture during the workpiece processing.

[0067] It can be seen that the utility model discloses through the accurate cooperation of the positioning boss 11 on the base and the support structure and the movable pressing plate 4, effectively improve the positioning accuracy of the workpiece, satisfy the machining requirement of high-precision parts. Through setting up the compression bolt 42 and the compression screw 41 on the movable pressing plate 4, can effectively compress the workpiece, avoid the displacement or deformation of the workpiece in the machining process, guarantee the machining quality. Through setting up the pin shaft 43, realize the hinging of the movable pressing plate 4 and the support structure, make the clamping operation simple and fast, greatly shorten the clamping time, improve the production efficiency. Through setting up the detachable workpiece positioning block 7, make the fixture can adapt to a plurality of different shapes and sizes of workpieces, reduce the type and replacement frequency of the fixture, reduce the production cost and management difficulty, improve the versatility of the fixture.

[0068] The utility model discloses a kind of working principles of tooling fixture for lathe: first, base 1 is installed on the main shaft chuck of lathe, ensure that base 1 is installed firm and position accurate.Then, the recess of support structure bottom is aligned with the positioning boss 11 on the base, is vertically fixed on the positioning boss 11 by positioning pin and bolt, the both ends of movable pressing plate 4 are respectively installed on the first support column 2 of support structure by positioning bolt 44 and pin shaft 43.Movable workpiece positioning block 7 is moved into recess, is fixed and installed on the second support column 3 of support structure by bolt.Rotating compression bolt 42 on movable pressing plate 4, gradually increase the clamping force of movable pressing plate 4 to workpiece positioning block, until the required clamping force is reached, ensure that workpiece positioning block 7 does not occur displacement in machining process.After processing is completed, reverse rotation fixed bolt 52 on fixed base plate 5, make movable clamp block 6 lower, reverse rotation compression bolt 42 on movable pressing plate 4, loosen pin shaft 43, rotate movable pressing plate 4, workpiece positioning block 7 is taken off from fixture.

[0069] Those skilled in the art can understand that: the above is only preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiment, for those skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features.Any modification, equivalent replacement, improvement etc.that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A tooling fixture for a lathe, characterized by, The utility model relates to a workpiece positioning device for lathe, including: Base is installed on the main shaft chuck of lathe, the base is discoid, and the surface is equipped with positioning boss and positioning pin hole; Supporting structure is provided with a plurality of, the bottom of supporting structure is equipped with recess groove with positioning boss cooperation and pin hole with positioning pin hole correspondence, and supporting structure is fixed on positioning boss through positioning pin and bolt vertically; Clamping mechanism is set up on the base, and clamping mechanism includes fixed bottom plate and two movable pressing plate, and movable clamping block is slidably arranged on fixed bottom plate, and two movable pressing plates are correspondingly arranged on both sides of movable clamping block, and two movable pressing plates and movable clamping block jointly form concave structure; Adjusting mechanism includes a plurality of compression screws, compression bolts and pin shafts; Workpiece positioning block is set up in concave structure, and workpiece positioning block is installed on supporting structure through bolt; Supporting structure vertically penetrates movable pressing plate, one end of movable pressing plate is hinged with supporting structure through pin shaft, and the other end of movable pressing plate is fixedly installed on supporting structure through positioning bolt, and compression screw penetrates movable pressing plate transversely and cooperates with compression bolt.

2. A tooling fixture for a lathe as claimed in claim 1, wherein Supporting structure includes first supporting column and second supporting column; First supporting column is provided with two and is used for supporting two movable pressing plates respectively; Second supporting column is provided with two and is used for installing workpiece positioning block.

3. The tool holder according to claim 1, wherein Fixed bottom plate surface is equipped with sliding recess groove, and movable clamping block slides on fixed bottom plate through sliding recess groove.

4. The tool holder according to claim 1, wherein Adjusting mechanism further includes a plurality of bolt columns, and bolt column cooperates with threaded hole arranged on the upper and lower surfaces of movable clamping block, and movable clamping block is provided with a plurality of compression rods on both sides.

5. The tool holder according to claim 2, wherein Two movable pressing plates and two first supporting columns are rotatably connected through pin shaft.

6. A tool holder for a lathe according to claim 2, wherein Spring is arranged between two movable pressing plates and workpiece positioning block.

7. The tool holder according to claim 1, wherein Movable clamping block is fixed on fixed bottom plate through fixed bolt and fixed screw.

8. The tool holder according to claim 1, wherein Fixed bottom plate includes vertical fixed plate and horizontal fixed plate, and vertical fixed plate and horizontal fixed plate are fixedly connected through triangular plate.

9. The tool holder according to claim 1, wherein Arc-shaped baffle is arranged on the side of base away from fixed bottom plate.

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