CN222095468U - A loading and unloading positioning mechanism for machine tool - Google Patents

Abstract

The utility model discloses a feeding and discharging positioning mechanism of a machine tool, which relates to the technical field of machine tool equipment and comprises a base, a first lifting mechanism, a second lifting mechanism and a fixing device, wherein the output end of the first lifting mechanism can drive the base to lift and lock the relative position after lifting along the vertical direction, the second lifting mechanism is arranged on the base, the output end of the second lifting mechanism can lift and lock the relative position after lifting along the vertical direction relative to the base, the fixing device is arranged at the output end of the second lifting mechanism, a fixing placing groove is formed in the upper end of the fixing device, and the fixing placing groove is matched with the shape of the end part of a workpiece to be processed. The lifting mechanism has the advantages that the lifting mechanism drives the base to realize height position adjustment to meet the placing requirements of workpieces with different lengths, the clamping accurate position can be guaranteed through the lifting of the second lifting mechanism, the fixing placing groove is convenient for the inserting and fixing of the workpieces, and the workpieces can be stably conveyed to the workbench clamp in the lifting process of the lifting mechanism.

Description

Feeding and discharging positioning mechanism of machine tool

Technical Field

The utility model relates to the technical field of machine tool equipment, in particular to a feeding and discharging positioning mechanism of a machine tool.

Background

When the existing machine tool is used for placing a cut object, a die is usually positioned, and an air cylinder is clamped. However, the conventional mold positioning cannot meet the positioning requirements of different products, such as curved surface characteristics on the surface of a pipe fitting, inaccurate positioning during clamping, and change of the length of a workpiece, so that the positioning point of the mold needs to be changed, and if the different workpieces are processed on the same machine tool, various auxiliary tools are needed to complete positioning, so that normal processing can be achieved.

Disclosure of utility model

The utility model aims to provide a feeding and discharging positioning mechanism of a machine tool, which solves the problems in the prior art and meets the positioning requirements of various workpieces.

In order to achieve the above object, the present utility model provides the following solutions:

The utility model provides a machine tool loading and unloading positioning mechanism which comprises a base, a first lifting mechanism, a second lifting mechanism and a fixing device, wherein the output end of the first lifting mechanism can drive the base to lift and lock the relative position after lifting in the vertical direction, the second lifting mechanism is arranged on the base, the output end of the second lifting mechanism can lift and lock the relative position after lifting in the vertical direction relative to the base, the fixing device is arranged at the output end of the second lifting mechanism, the upper end of the fixing device is provided with a fixing placing groove, and the fixing placing groove is matched with the appearance of the end part of a workpiece to be processed.

Preferably, the base is provided with a first horizontal moving mechanism and a second horizontal moving mechanism, the first horizontal moving mechanism is arranged on the base in a sliding mode along a first direction, the second horizontal moving mechanism is arranged on the first horizontal moving mechanism in a sliding mode along a second direction, the second lifting mechanism is fixedly arranged on the second horizontal moving mechanism, and the first direction, the second direction and the vertical direction are perpendicular to each other.

The fixing device comprises a connecting table and a fixing table, wherein a large gear is fixedly arranged at the lower end of the fixing table, the upper end of the fixing table is provided with a fixing placing groove, the connecting table is fixedly arranged at the output end of the second lifting mechanism, a rotating column and a small gear are arranged on the connecting table, the large gear is rotatably arranged on the rotating column around a vertical axis, a rotating shaft of the small gear is rotatably arranged on the connecting table, the small gear is in meshed transmission with the large gear, and a first knob is formed by part of the rotating shaft of the small gear.

The first lifting mechanism comprises a guide mechanism, a rack, a lifting gear, a third screw and an adjusting hand wheel, wherein the guide mechanism comprises a support column and at least one guide column, the lower ends of the support column and each guide column are fixedly connected with a machine tool, the rack is fixedly arranged on the support column in the vertical direction, at least one guide hole is formed in the base, one guide column penetrates through each guide hole, a first support and a second support are fixedly arranged on the base, the third screw is respectively connected with the first support and the second support in a rotating mode through bearings, one end of the third screw is fixedly provided with a coaxial lifting gear, the lifting gear is meshed with the rack, and one end, away from the lifting gear, of the third screw is fixedly provided with the adjusting hand wheel.

Preferably, the number of the guide posts is 2, the support posts are located between two guide posts, and the upper ends of the guide posts are fixedly connected with the upper ends of the support posts through connecting rods.

The first horizontal moving mechanism comprises a first base, a first nut and a first screw rod, wherein a first sliding rail and a third support are fixedly arranged on the base, the first base is arranged on the first sliding rail in a sliding mode along the first direction, the first nut is fixedly arranged below the first base, the first screw rod is rotatably arranged on the third support through a bearing and is in threaded connection with the first nut, and the second horizontal moving mechanism is arranged on the first base in a sliding mode along the second direction.

The second horizontal moving mechanism comprises a second base, a second nut and a second screw rod, wherein a second sliding rail and a fourth support are fixedly arranged on the first base, the second base is arranged on the second sliding rail in a sliding mode along the second direction, the second nut is fixedly arranged below the second base, the second screw rod is rotatably arranged on the fourth support through a bearing and is in threaded connection with the second nut, and the second lifting mechanism is fixedly arranged on the second base.

Preferably, the end parts of the first screw rod and the second screw rod are fixedly provided with second knobs.

Preferably, a supporting support is further fixedly arranged between the first support and the second support on the base, and the third screw is rotatably arranged on the supporting support through a bearing.

Compared with the prior art, the utility model has the following technical effects:

The machine tool loading and unloading positioning mechanism provided by the utility model adopts the first lifting mechanism capable of lifting to drive the base to realize high and low position adjustment so as to meet the placing requirements of workpieces with different lengths, and realizes that the workpiece to be processed is separated from the workpiece to be processed clamped by the clamp on the workbench through the lifting movement of the fixed distance of the second lifting mechanism so as to meet the rotating requirement of the workbench, the position of the workpiece can be limited by the arrangement of the fixed placing groove, so that the accurate clamping position of the workbench clamp is ensured, and the fixed placing groove arranged on the fixing device is convenient for the inserting and fixing of the workpiece to be processed, so that the workpiece to be processed is stably conveyed to the workbench clamp in the lifting process of the first lifting mechanism.

Further, the first horizontal moving mechanism, the second horizontal moving mechanism and the first lifting mechanism form a triaxial moving mechanism of the base together, so that position adjustment of the base in the front-back direction, the left-right direction and the vertical direction is realized, positioning of workpieces of various different specifications is met, and production operation is facilitated.

Further, the fixing device is composed of the connecting table and the fixing table, the pinion is driven to rotate through rotating the first knob, so that the bull gear is driven to circumferentially rotate around the vertical axis, namely, the fixing table is driven to circumferentially rotate around the vertical axis, fine adjustment of the fixed placing groove in the circumferential direction is achieved, consistency between the fixed placing groove and the workpiece conveying direction and consistency between the clamping direction of the clamp on the workbench are guaranteed, and positional deviation of clamping of the clamp on the workbench is avoided.

Further, the first lifting mechanism adopts the guiding mechanism with the guiding post and the supporting column, is used for realizing stable lifting of the base, and drives the third screw rod to rotate through the rotation of the adjusting hand wheel, so that the lifting gear at one end of the third screw rod is driven to rotate.

Further, the guide posts are two, the structure is stable and reliable, the support posts are positioned between the two guide posts, lifting power is enabled to drive more uniformly and reliably, the upper ends of the guide posts and the support posts are fixedly connected through connecting rods, the structural stability of the guide mechanism is guaranteed, and the stable guide effect is improved.

Further, the first horizontal moving mechanism adopts the threaded fit of the first screw rod which rotates and the first nut at the bottom of the first base, and has the advantages of simple moving structure, stability, reliability and convenience in processing and manufacturing.

Furthermore, the second horizontal moving mechanism is also realized by adopting the same structure as the first horizontal moving mechanism, so that the maintenance and the repair are convenient, the sharing degree of the parts is high, and the manufacturing cost and the processing difficulty are reduced.

Further, the second knob arranged at the end parts of the first screw rod and the second screw rod can enable an operator to more conveniently rotate and adjust the first screw rod and the second screw rod.

Further, the setting of support can improve third screw rod around its axis pivoted stability, guarantees lifting gear's stable rotation and with the rack between stable transmission be connected.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a feeding and discharging positioning mechanism of a machine tool;

FIG. 2 is a schematic diagram showing the installation of the feeding and discharging positioning mechanism of the machine tool on the machine tool;

FIG. 3 is a schematic view of a part of a structure above a base in a feeding and discharging positioning mechanism of a machine tool for clamping a workpiece to be processed;

fig. 4 is a schematic structural view of the upper part of the base in the feeding and discharging positioning mechanism of the machine tool.

In the figure:

100-a feeding and discharging positioning mechanism of a machine tool;

1-a first horizontal moving mechanism, 11-a first base, 12-a first screw;

2-a second horizontal moving mechanism, 21-a second base, 22-a second screw rod and 23-a second knob;

3-a first lifting mechanism, 31-a guide post, 32-a support post, 33-a connecting rod, 34-a rack, 35-a lifting gear, 36-a third screw rod and 37-an adjusting hand wheel;

4-base, 41-first support, 42-second support, 43-support, 44-first slide rail, 45-third support, 46-second slide rail, 47-fourth support;

5-a second lifting mechanism, 51-a control knob;

6-connection table, 61-pinion, 62-first knob;

7-fixed table, 71-fixed placing groove, 72-large gear;

8-a workpiece to be processed;

9-clamp and 91-rotating exchange arm.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model aims to provide a feeding and discharging positioning mechanism of a machine tool, which solves the problems in the prior art and meets the positioning requirements of various workpieces.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Example 1

The embodiment provides a machine tool loading and unloading positioning mechanism 100, which is mainly used on a laser cutting machine, but is not limited to the use on the machine tool, as shown in fig. 1-4, and comprises a base 4, a first lifting mechanism 3, a second lifting mechanism 5 and a fixing device, wherein the output end of the first lifting mechanism 3 can drive the base 4 to lift and lock the relative position after lifting along the vertical direction, the second lifting mechanism 5 is arranged on the base 4, the output end of the second lifting mechanism 5 can lift and lock the relative position after lifting along the vertical direction relative to the base 4, the fixing device is arranged at the output end of the second lifting mechanism 5, the upper end of the fixing device is provided with a fixing placing groove 71, and the fixing placing groove 71 is matched with the shape of the end of a workpiece 8 to be processed. The first lifting mechanism 3 capable of lifting drives the base 4 to achieve height position adjustment so as to meet the placing requirements of workpieces with different lengths, the workpiece 8 to be processed is separated from the workpiece clamped by the clamp 9 on the workbench through lifting movement of a fixed distance of the second lifting mechanism 5 so as to meet the rotating requirement of the workbench, the position of the workpiece 8 to be processed can be limited by the arrangement of the fixed placing groove 71 so as to ensure the accurate position clamped by the clamp 9 of the workbench, and the fixed placing groove 71 arranged on the fixing device is convenient for inserting and fixing the workpiece 8 to be processed, so that stable conveying to the clamp 9 of the workbench is ensured in the lifting process of the first lifting mechanism 3.

Wherein, fixing device's structure is as follows:

In the alternative of this embodiment, as shown in fig. 1 to 4, preferably, the fixing device includes a connection table 6 and a fixing table 7, a large gear 72 is fixed at the lower end of the fixing table 7, a fixing placement groove 71 is formed at the upper end of the fixing table 7, the connection table 6 is fixedly arranged at the output end of the second lifting mechanism 5, a rotation column and a small gear 61 are arranged on the connection table 6, the large gear 72 is rotatably arranged on the rotation column around a vertical axis, a rotation shaft of the small gear 61 is rotatably arranged on the connection table 6, the small gear 61 and the large gear 72 are meshed for transmission, and a first knob 62 is formed by a part of the rotation shaft of the small gear 61. The fixing device is composed of the connecting table 6 and the fixing table 7, the pinion 61 is driven to rotate through rotating the first knob 62, so that the large gear 72 is driven to circumferentially rotate around the vertical axis, namely, the fixing table 7 is driven to circumferentially rotate around the vertical axis, fine adjustment of the fixing placing groove 71 in the circumferential direction is achieved, consistency between the fixing placing groove 71 and the workpiece conveying direction and the clamping direction of the clamp 9 on the workbench is ensured, and the clamping position deviation of the clamp 9 on the workbench is avoided.

Specifically, the fixing table 7 is a profiling mold manufactured for the workpiece 8 to be processed, the fixed placing groove 71 formed on the fixing table imitates the shape of the bottom of the workpiece 8 to be processed, the bottom of the workpiece 8 to be processed is restrained through the fixed placing groove 71, the clamping surface of the clamp 9 on the working table is also attached to the shape of the side wall of the workpiece 8 to be processed, the fixing table and the clamping surface are matched together to complete the complete fixing restraint of the workpiece 8 to be processed in three dimensions, and the positioning requirement of positioning the workpiece 8 to be processed is met.

In particular, the fixing table 7 may also be provided to be exchangeable in order to adapt to the bottom shape of the different workpieces 8 to be processed for fixing to the fixing table 7.

Specifically, a member having a limit or lock may be provided so as to lock the relative position of the fixed stage 7 with respect to the connection stage 6, which may be the rotation of the lock pinion 61 or the rotation of the lock gearwheel 72, and any existing structure or member capable of realizing the limit or lock function may be employed.

Specifically, for example, a rotational limit locking block is provided on the connection table 6, the limit locking block is rotatably provided on the connection table 6 around the first axis, a locking tooth is provided on one side of the limit locking block, which is close to the pinion 61, and when the side of the limit locking block, which is provided with the locking tooth, is meshed with the pinion 61, the pinion 61 can be limited in rotation in a state that the locking tooth is blocked, thereby realizing rotational locking of the pinion 61 and rotational locking of the interlocking large gear 72, and realizing relative position fixation between the fixed table 7 and the connection table 6.

Specifically, because of the installation error, the position of the fixed placement groove 71 on the fixed table 7 has a positional deviation from the surface clamped by the clamp 9 on the working table, so that the pinion 61 drives the large gear 72 to realize the tiny adjustment of the circumferential rotation of the fixed table 7 on the horizontal plane around the axis thereof, the occurrence of the problem can be reduced, and the accuracy of the installation position of the workpiece 8 to be processed can be improved.

Specifically, the rotation shaft of the pinion 61 extends downward beyond the lower plane of the connection table 6, and the protruding portion forms a first knob 62, and specifically, to increase the operation convenience, a structure that can be held by an operator for rotation may be provided on the first knob 62, for example, an annular outer protrusion, such as the external structure of the second knob 23, etc.

The first lifting mechanism 3 has the following structure:

Specifically, the first lifting mechanism 3 may be any existing mechanism capable of driving the base 4 to lift, including but not limited to the following structural components and implementation manners.

In the alternative of this embodiment, as shown in fig. 1 to 4, preferably, the first lifting mechanism 3 includes a guiding mechanism, a rack 34, a lifting gear 35, a third screw 36 and an adjusting hand wheel 37, where the guiding mechanism includes a supporting column 32 and at least one guiding column 31, the lower ends of the supporting column 32 and each guiding column 31 are fixedly connected with a machine tool, the rack 34 is fixedly arranged on the supporting column 32 along a vertical direction, at least one guiding hole is arranged on the base 4, one guiding column 31 is respectively penetrated in each guiding hole, a first support 41 and a second support 42 are fixedly arranged on the base 4, the third screw 36 is respectively connected with the first support 41 and the second support 42 in a rotating manner through bearings, one end of the third screw 36 is fixedly provided with a coaxial lifting gear 35, the lifting gear 35 is meshed with the rack 34, and one end of the third screw 36, which is far from the lifting gear 35, is fixedly provided with the adjusting hand wheel 37. The first lifting mechanism 3 adopts a guiding mechanism with a guiding post 31 and a supporting post 32, and is used for realizing stable lifting of the base 4, and the rotation of the adjusting hand wheel 37 drives the rotation of the third screw 36, so that the lifting gear 35 at one end of the first lifting mechanism is driven to rotate, and as the lifting gear 35 is meshed with the rack 34 on the supporting post 32, the relative height position of the base 4 is manually adjusted by meshing and matching the lifting gear 35 and the rack 34, and the placing requirements of workpieces with different lengths are met.

Specifically, a linear bearing is installed in the guide hole, and the base 4 is connected with the guide post 31 through the linear bearing.

Specifically, the first lifting mechanism 3 also includes a locking member having a relative position capable of locking the height of the base 4, which may be an existing locking structure or component, and the locking position may be the lifting gear 35, the third screw 36 or the adjusting hand wheel 37, including but not limited to a structure and implementation manner, for example, the second support 42 is located at a side close to the adjusting hand wheel 37, a position-adjustable limit rod is provided on the second support 42 or the base 4, and when the limit rod is located at the first position, it can be located at a side of the handle of the adjusting hand wheel 37 so as to limit the rotation of the adjusting hand wheel 37, and when the limit rod is located at the second position, it can release the limiting effect of the handle of the adjusting hand wheel 37, at this time, the adjusting hand wheel 37 can rotate normally.

In an alternative of this embodiment, as shown in fig. 1 to 4, preferably, a support seat 43 is further fixed between the first seat 41 and the second seat 42 on the base 4, and the third screw 36 is rotatably disposed on the support seat 43 through a bearing. The support seat 43 can improve the stability of the rotation of the third screw 36 around the axis thereof, and ensure the stable rotation of the lifting gear 35 and the stable transmission connection with the rack 34.

In the alternative of this embodiment, as shown in fig. 1 to 4, more preferably, the number of the guide posts 31 is 2, the support posts 32 are located between the two guide posts 31, and the upper ends of the guide posts 31 are fixedly connected with the upper ends of the support posts 32 through connecting rods 33. The guide posts 31 are two, the structure is stable and reliable, the support posts 32 are positioned between the two guide posts 31, lifting power is enabled to drive more uniformly and reliably, the upper ends of the guide posts 31 and the support posts 32 are fixedly connected by the connecting rods 33, the structural stability of the guide mechanism is guaranteed, and the stable guide effect is improved.

Wherein, to increase the flexibility of the position of the base 4, it can be set as follows:

In the alternative of this embodiment, as shown in fig. 1 and 2, preferably, the base 4 is provided with a first horizontal moving mechanism 1 and a second horizontal moving mechanism 2, the first horizontal moving mechanism 1 is slidably disposed on the base 4 along a first direction, the second horizontal moving mechanism 2 is slidably disposed on the first horizontal moving mechanism 1 along a second direction, the second lifting mechanism 5 is fixedly disposed on the second horizontal moving mechanism 2, and the first direction, the second direction and the vertical direction are all perpendicular to each other. The first horizontal moving mechanism 1, the second horizontal moving mechanism 2 and the first lifting mechanism 3 form a triaxial moving mechanism of the base 4 together, so that the position adjustment of the base 4 in the front-back direction, the left-right direction and the vertical direction is realized, the positioning of various workpieces with different specifications is met, and the production operation is convenient.

Specifically, the first horizontal moving mechanism 1, the second horizontal moving mechanism 2 and the first lifting mechanism 3 limit the directional movement between the constraint base 4 and the second lifting mechanism 5 and the base 4 together, that is, the first horizontal moving mechanism 1 and the second horizontal moving mechanism 2 restrict the deflection of the second lifting mechanism 5 relative to the base 4 from left to right, front to back, so that the second lifting mechanism can only lift in the vertical direction, and the lifting gear 35 on the third screw 36 is driven to rotate by manually rotating the adjusting hand wheel 37, and the lifting gear 35 is meshed with the rack 34 to generate an upward climbing action, so that the base 4 moves vertically and the vertical lifting function is realized.

In the alternative of this embodiment, as shown in fig. 1, preferably, the first horizontal moving mechanism 1 includes a first base 11, a first nut and a first screw 12, where a first sliding rail 44 and a third support 45 are fixed on the base 4, the first base 11 is slidably disposed on the first sliding rail 44 along a first direction, the first nut is fixed under the first base 11, the first screw 12 is rotatably disposed on the third support 45 through a bearing, and the first screw 12 is in threaded connection with the first nut, and the second horizontal moving mechanism 2 is slidably disposed on the first base 11 along a second direction. The first horizontal moving mechanism 1 adopts the threaded fit of the first screw 12 which rotates and the first nut at the bottom of the first base 11, and has simple moving structure, stability and reliability and convenient processing and manufacturing.

In the alternative of this embodiment, as shown in fig. 1, preferably, the second horizontal moving mechanism 2 includes a second base 21, a second nut and a second screw 22, where a second slide rail 46 and a fourth support 47 are fixed on the first base 11, the second base 21 is slidably disposed on the second slide rail 46 along a second direction, the second nut is fixed under the second base 21, the second screw 22 is rotatably disposed on the fourth support 47 through a bearing, and the second screw 22 is in threaded connection with the second nut, and the second lifting mechanism 5 is fixed on the second base 21. The second horizontal movement mechanism 2 is also realized by adopting the same structure as the first horizontal movement mechanism 1, is convenient to maintain and repair, can realize high sharing degree of parts, and reduces manufacturing cost and processing difficulty.

In the alternative of this embodiment, as shown in fig. 1, preferably, the ends of the first screw 12 and the second screw 22 are respectively fixedly provided with a second knob 23. The second knob 23 provided at the ends of the first screw 12 and the second screw 22 enables an operator to more conveniently perform rotational adjustment thereof.

Wherein, regarding the structure of the second elevating mechanism 5:

Specifically, the second lifting mechanism 5 may be an air cylinder, and the end of the piston rod of the air cylinder is fixedly connected with the connecting table 6, so that for a workpiece with a determined length, the connecting table 6 and the fixing table 7 can be lowered by carrying the workpiece clamped in the fixing placement groove 71 to a specified height through setting the piston rod stroke of the air cylinder with a fixed extension size, and at this time, the fixing placement groove 71 is in a state of being separated from the lower end of the workpiece 8 to be processed after the workpiece is lowered to the specified height.

Specifically, the control of the second lifting mechanism 5 (i.e., the air cylinder) may be controlled by a control system of the machine tool, or the control knob 51 of the second lifting mechanism 5 may be disposed on the second base 21, and the telescopic action of the output end of the second lifting mechanism 5 may be realized by manually controlling the control knob 51.

Specifically, when the workpiece 8 to be machined needs to be mounted, the control knob 51 is manually turned on, the cylinder drives the connecting table 6 to be adjusted to a set height (according to the length of the workpiece and the clamping position of the clamp of the workbench), an operator installs the lower end of the workpiece 8 to be machined on the fixed table 7, then clamps the accurate clamping position of the workpiece 8 to be machined by the clamp 9 of the workbench, after the clamp 9 of the workbench is clamped, the control knob 51 is manually turned off, the cylinder drives the connecting table 6, the fixed table 7 and the like to automatically descend, the lower end of the workpiece 8 to be machined is separated from the fixed placing groove 71 on the fixed table 7, at the moment, the workpiece 8 to be machined is completely clamped and fixed by the clamp 9 of the workbench, two ends of the rotary exchanging arm 91 of the workbench are respectively provided with one clamp 9, one clamp 9 is positioned outside the machine tool and close to the feeding and discharging positioning mechanism 100 of the machine tool, the other clamp 9 is positioned in the machining area inside the machine tool, the rotary exchanging arm 91 rotates around the vertical axis, when the rotary exchanging arm 91 rotates around the vertical axis, the rotary exchanging arm 7 and the workpiece 8 and the rotary exchanging arm 7 and the workpiece 8 are separated from the rotary arm 7 can be guaranteed not to be directly interfered with the rotary exchanging arm 91 when the rotary exchanging arm is rotated around the vertical axis, and the rotary exchanging arm and the workpiece is guaranteed not to be directly in the inside the machining area.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided herein to facilitate understanding of the principles and embodiments of the present utility model and to provide further advantages and practical applications for those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (9)

1. The machine tool loading and unloading positioning mechanism is characterized by comprising a base, a first lifting mechanism, a second lifting mechanism and a fixing device;

The output end of the first lifting mechanism can drive the base to lift and lock the lifted relative position in the vertical direction, the second lifting mechanism is arranged on the base, and the output end of the second lifting mechanism can lift and lock the lifted relative position in the vertical direction relative to the base;

The fixing device is arranged at the output end of the second lifting mechanism, and the upper end of the fixing device is provided with a fixing placing groove which is matched with the shape of the end part of the workpiece to be processed.

2. The feeding and discharging positioning mechanism of the machine tool according to claim 1, wherein the base is provided with a first horizontal moving mechanism and a second horizontal moving mechanism;

the first horizontal moving mechanism is arranged on the base in a sliding manner along a first direction;

The second horizontal moving mechanism is arranged on the first horizontal moving mechanism in a sliding manner along a second direction;

the second lifting mechanism is fixedly arranged on the second horizontal moving mechanism;

The first direction, the second direction and the vertical direction are all perpendicular to each other.

3. The feeding and discharging positioning mechanism of the machine tool according to claim 1, wherein the fixing device comprises a connecting table and a fixing table;

the large gear is fixedly arranged at the lower end of the fixed table, and the fixed placing groove is formed in the upper end of the fixed table;

the connecting table is fixedly arranged at the output end of the second lifting mechanism, a rotating column and a pinion are arranged on the connecting table, the large gear is rotationally arranged on the rotating column around a vertical axis, a rotating shaft of the pinion is rotationally arranged on the connecting table, and the pinion is meshed with the large gear for transmission;

A portion of the rotational axis of the pinion forms a first knob.

4. The feeding and discharging positioning mechanism of the machine tool according to claim 1, wherein the first lifting mechanism comprises a guide mechanism, a rack, a lifting gear, a third screw and an adjusting hand wheel;

The guide mechanism comprises a support column and at least one guide column, wherein the support column and the lower ends of the guide columns are fixedly connected with a machine tool;

At least one guide hole is formed in the base, and one guide post is respectively penetrated in each guide hole;

The base is fixedly provided with a first support and a second support, the third screw is respectively and rotatably connected with the first support and the second support through bearings, one end of the third screw is fixedly provided with a coaxial lifting gear, and the lifting gear is meshed with the rack;

And one end of the third screw rod, which is far away from the lifting gear, is fixedly provided with the adjusting hand wheel.

5. The feeding and discharging positioning mechanism of a machine tool according to claim 4, wherein the number of the guide posts is 2, the support posts are located between the two guide posts, and the upper ends of the guide posts are fixedly connected with the upper ends of the support posts through connecting rods.

6. The machine tool loading and unloading positioning mechanism of claim 2, wherein the first horizontal moving mechanism comprises a first base, a first nut and a first screw rod, and a first sliding rail and a third support are fixedly arranged on the base;

The first base is arranged on the first sliding rail in a sliding manner along the first direction;

the first nut is fixedly arranged below the first base;

The first screw is rotatably arranged on the third support through a bearing, and is in threaded connection with the first nut;

The second horizontal moving mechanism is arranged on the first base in a sliding manner along the second direction.

7. The machine tool loading and unloading positioning mechanism of claim 6, wherein the second horizontal moving mechanism comprises a second base, a second nut and a second screw rod, and a second sliding rail and a fourth support are fixedly arranged on the first base;

the second base is arranged on the second sliding rail in a sliding manner along the second direction;

the second nut is fixedly arranged below the second base;

The second screw is rotatably arranged on the fourth support through a bearing, and is in threaded connection with the second nut;

The second lifting mechanism is fixedly arranged on the second base.

8. The feeding and discharging positioning mechanism of the machine tool of claim 7, wherein the end parts of the first screw and the second screw are fixedly provided with second knobs.

9. The feeding and discharging positioning mechanism of the machine tool of claim 4, wherein a supporting seat is further fixedly arranged on the base between the first seat and the second seat, and the third screw is rotatably arranged on the supporting seat through a bearing.