CN115401269B - Positioning fixture for sprocket production and processing - Google Patents

Abstract

The invention belongs to the technical field of chain wheels, in particular to a positioning clamp for producing and processing based on chain wheels, which comprises a supporting frame, two groups of translation mechanisms oppositely arranged between the two groups of supporting frames, a clamping mechanism arranged on the translation mechanisms, a base and a first rotating mechanism arranged below the translation mechanisms, a storage mechanism arranged on two sides of the base, a second rotating mechanism and eight groups of clamping mechanisms arranged on the inner side of the first rotating mechanism and an adjusting mechanism arranged on the clamping mechanisms. The invention sets the first rotating mechanism, the second rotating mechanism and the clamping mechanism, the first rotating mechanism can rotate the whole turntable, the different directions of the eight groups of clamping mechanisms are changed, and the second rotating mechanism can change the clamping and loosening of the clamping mechanism to the chain wheel, thereby facilitating the translation mechanism and the clamping mechanism, and the chain wheel to be processed is matched with the clamping mechanism to be placed on the clamping mechanism, and the processed chain wheel is taken down from the clamping mechanism.

Description

Positioning fixture for sprocket production and processing

Technical field:

the invention relates to the technical field of chain wheels, in particular to a positioning clamp for producing and processing based on a chain wheel.

The background technology is as follows:

The sprocket is a cog sprocket wheel for meshing with precisely pitched blocks on links or cables. The chain wheel is widely applied to mechanical transmission in industries such as chemical industry, textile machinery, escalator, wood processing, three-dimensional parking garage, agricultural machinery, food processing, instrument and instrument, petroleum and the like.

When the sprocket is machined, the sprocket is usually required to be positioned and clamped, and a plurality of positioning clamps for the sprocket are usually manually operated, so that the process is tedious and time-consuming, the rate of machining the sprocket is reduced, and the automatic machining is not facilitated.

The invention comprises the following steps:

the invention aims at overcoming the defects of the prior art, and provides a positioning fixture for sprocket production and processing, which is used for solving the problems that the positioning fixture for sprockets is usually manually operated, the process is tedious and time-consuming, the speed of sprocket processing is reduced, and the automatic processing is not facilitated.

The utility model provides a positioning fixture based on sprocket production processing, includes the support frame, two sets of translation mechanisms of relative setting between two sets of support frames, set up clamp mechanism on translation mechanism, set up base and first rotary mechanism below translation mechanism, set up put thing mechanism in the base both sides, set up second rotary mechanism and eight sets of fixture and the adjustment mechanism who sets up on fixture in first rotary mechanism inboard, translation mechanism includes first motor, one-way lead screw, slide bar and slider, first motor fixed mounting in the upper end of support frame, one-way lead screw with the slide bar relatively parallel arrangement from bottom to top, one end of one-way lead screw with the output fixed connection of first motor, the slider slides on the slide bar and rotates on the one-way lead screw, first motor can drive one-way lead screw and drive the slider and slide along the slide bar horizontal slip;

The clamping mechanism is arranged at the bottom end of the sliding block and comprises a first hydraulic cylinder, a two-way cylinder, clamping arms and clamping jaws, wherein the first hydraulic cylinder is arranged at the bottom end of the sliding block, the two-way cylinder is arranged at the output end of the first hydraulic cylinder, the clamping arms are symmetrically arranged at the two output ends of the two-way cylinder respectively, the clamping jaws are arranged on the two opposite end surfaces of one side of the clamping arms respectively, the first hydraulic cylinder can drive the two-way cylinder to move up and down, and the two-way cylinder can drive the clamping jaws on the clamping arms to do relative motion so as to clamp the chain wheel;

The first rotating mechanism rotates on the base and comprises a rotary table, a toothed ring, a second motor and a fluted disc, wherein the rotary table is embedded into and rotates in a limit groove formed in the upper end wall of the base, the toothed ring is sleeved and fixed at the lower end part of the rotary table in a surrounding manner, the second motor is fixed on the outer wall of the base through a fixing plate, the fluted disc is fixedly arranged at the output end of the second motor and is in meshed connection with the toothed ring, and the second motor is driven to drive the rotary table to rotate at the upper end part of the base through the meshed connection of the toothed ring and the fluted disc;

The second rotating mechanism comprises a stirring disc, a reinforcing bottom plate, a reinforcing support plate and a second hydraulic cylinder, the reinforcing bottom plate is fixedly arranged on the inner wall of the turntable through the reinforcing support plate, the stirring disc is rotatably arranged on the upper end part of the reinforcing bottom plate through a shaft collar, the second hydraulic cylinder is rotatably connected to a fixed column fixed at the edge of the reinforcing bottom plate, the output end of the second hydraulic cylinder is rotatably connected to a connecting shaft fixed at the bottom of the stirring disc, and the second hydraulic cylinder can push the stirring disc to rotate on the reinforcing bottom plate through the connecting shaft;

The clamping mechanism comprises a long arm, a first connecting arm, a first swing arm, a second connecting arm, a second swing arm and a second swing arm, wherein one end part of the long arm, which is close to the first connecting arm, is positioned at the upper end of the inner wall of the rotary disc through a first rotating part, the first connecting arm is in screwed connection with one end part of the long arm, one end of the first swing arm, which is far away from the long arm, is positioned at the upper end of the inner wall of the rotary disc through a second rotating part, one end of the second connecting arm is in screwed connection with the middle section of the long arm, one end of the second swing arm, which is far away from the second connecting arm, is positioned at the upper end of the inner wall of the rotary disc through a third rotating part, and the connecting column is fixedly installed at the bottom of one end of the long arm, which is close to the rotary disc, and is embedded in a stirring notch formed at the edge of the stirring disc;

The two groups of adjusting mechanisms are respectively arranged at one side surface of the second swing arm opposite to the first swing arm and comprise a third motor, a bidirectional screw rod and a clamping block, the bidirectional screw rod is fixedly arranged at the output end of the third motor, the clamping blocks are symmetrically arranged on the clamping blocks, and the third motor can drive the bidirectional screw rod to drive the clamping blocks to respectively perform relative motion in the first swing arm and the second swing arm;

The object placing mechanism comprises a driving groove plate, a fourth motor, a driving screw, a tray and a placing groove plate, wherein the driving groove plate is integrally arranged with the placing groove plate, the fourth motor is installed at the bottom end of the inner wall of the driving groove plate, the driving screw is fixedly installed at the output end of the fourth motor, one end of the tray is rotationally connected to the driving screw and slides up and down in the placing groove plate, and the fourth motor can drive the driving screw to drive the tray to move up and down in the inner wall of the placing groove plate.

By adopting the technical scheme, the chain wheel can be fully automatically taken and placed, and the chain wheel is convenient to process.

Four of the eight groups of clamping mechanisms are arranged in a state that the other four groups are turned one hundred eighty degrees.

By adopting the technical scheme, the clamping and loosening of the chain wheel are conveniently controlled, so that the chain wheel is taken and placed.

The reinforcing support plate is provided with eight groups of positioning seats which are arranged below two groups of clamping blocks oppositely and are arranged between the reinforcing bottom plate and the turntable in a surrounding mode, and the positioning seats are arranged in a conical structure.

Through adopting above-mentioned technical scheme, increase the steadiness of the device to the accessible positioning seat supports the sprocket.

The base is integrally arranged in a ring-shaped structure, and a cleaning opening is formed in the lower end portion of one side of the base.

By adopting the technical scheme, the scraps falling from the processing chain wheel can be cleaned from the cleaning opening.

The first rotating mechanism is provided with a placing opening positioned above the two groups of clamping blocks which are oppositely arranged.

By adopting the technical scheme, the chain wheel is convenient to place.

The middle part of tray has seted up puts the thing notch, place the central point of frid and two sets of clamping jaw's symmetry central point is on same vertical cross-section.

Through adopting above-mentioned technical scheme, conveniently press from both sides through the clamping jaw and get and place the sprocket.

The second hydraulic cylinders are respectively arranged on two sides of the upper end face of the edge of the reinforcing bottom plate, and the output ends of the two second hydraulic cylinders are arranged in the clockwise rotation direction of the poking disc.

Through adopting above-mentioned technical scheme, conveniently drive and stir the dish and rotate.

The central axes of the long arm, the first connecting arm, the first swing arm and the second swing arm are all on the same horizontal line.

By adopting the technical scheme, the chain wheel is convenient to clamp.

The positioning fixture for sprocket production and processing has the beneficial effects that:

1. the first rotating mechanism can enable the turntable to integrally rotate, so that different directions of eight groups of clamping mechanisms can be changed, and the second rotating mechanism can change the clamping and loosening of the clamping mechanisms to the chain wheels, so that the translation mechanism and the clamping mechanism are convenient to cooperate to place the chain wheels to be processed on the clamping mechanisms, and the processed chain wheels are taken down from the clamping mechanisms;

2. the adjusting mechanism is arranged at the upper end part of the chain wheel, so that the third motor can be controlled to drive the clamping blocks to do relative motion through the bidirectional screw rod, thereby clamping the chain wheel and being suitable for clamping and fixing the chain wheels with different sizes;

3. Through setting up the thing mechanism of putting, put thing mechanism and be two sets of, a set of sprocket that can be used to place waiting to process, another set of sprocket that can place processing, the fourth motor drives the tray through the drive lead screw and moves down, makes sprocket toothed one side upwards, and the vertical arrangement is placed in placing inside the frid, is located the sprocket bottom portion embedding of bottom and put in the thing notch, and its upper end is held through the tray up end to place waiting to process sprocket and sprocket that has processed.

Description of the drawings:

FIG. 1 is a schematic diagram of the whole structure of a positioning fixture for sprocket-based production and processing;

FIG. 2 is an elevation view of the positioning fixture for sprocket-based production and processing according to the present invention;

FIG. 3 is a schematic view of a positioning fixture base structure for sprocket-based manufacturing and machining according to the present invention;

FIG. 4 is a schematic diagram of a second rotation mechanism of the positioning fixture for sprocket-based manufacturing and machining according to the present invention;

FIG. 5 is a schematic diagram of a structure of a positioning fixture clamping mechanism for sprocket-based production and processing;

FIG. 6 is a second hydraulic cylinder position diagram of the positioning fixture for sprocket-based production and processing according to the present invention;

FIG. 7 is a schematic diagram of a clamping mechanism of a positioning clamp for sprocket-based production and processing according to the present invention;

FIG. 8 is a schematic diagram of a driving slot plate, a fourth motor and a tray of the positioning fixture for sprocket-based production and processing according to the present invention;

FIG. 9 is a schematic diagram of a positioning fixture adjusting mechanism for sprocket-based manufacturing and machining according to the present invention;

FIG. 10 is an enlarged view of the location fixture for sprocket-based manufacturing process of FIG. 5 at X;

FIG. 11 is an enlarged view of the position Y in FIG. 5 based on the positioning fixture for sprocket production and machining according to the present invention

Fig. 12 is a schematic diagram of a structure of a clamping mechanism and a positioning seat of a positioning clamp for sprocket-based manufacturing and processing according to the present invention.

In the figure: 1. a support frame; 2. a translation mechanism; 201. a first motor; 202. a one-way screw; 203. a slide bar; 204. a slide block; 3. a clamping mechanism; 301. a first hydraulic cylinder; 302. a bidirectional cylinder; 303. a clamp arm; 304. a clamping jaw; 4. a base; 401. a limit groove; 5. a first rotation mechanism; 501. a turntable; 5011. a placement port; 502. a toothed ring; 503. a second motor; 504. fluted disc; 6. a second rotation mechanism; 601. a toggle plate; 6001. a notch; 602. reinforcing the bottom plate; 603. a reinforcing support plate; 604. a second hydraulic cylinder; 605. a connecting shaft; 606. fixing the column; 7. a positioning seat; 8. a clamping mechanism; 801. a long arm; 802. a first connecting arm; 803. a first swing arm; 804. a second connecting arm; 805. a second swing arm; 806. a first rotating part; 807. A second rotating part; 808. a third rotating part; 809. a connecting column; 9. an adjusting mechanism; 901. a third motor; 902. a bidirectional screw rod; 903. clamping blocks; 10. a storage mechanism; 1001. driving the trough plate; 1002. a fourth motor; 1003. driving a screw rod; 1004. a tray; 10041. a storage notch; 1005. placing a groove plate; 11. And cleaning the mouth.

The specific embodiment is as follows:

the preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.

Referring to fig. 1-11, a positioning fixture for sprocket-based production and processing comprises a support frame 1, two groups of translation mechanisms 2 oppositely arranged between the two groups of support frames 1, a clamping mechanism 3 arranged on the translation mechanisms 2, a base 4 and a first rotating mechanism 5 arranged below the translation mechanisms 2, a storage mechanism 10 arranged on two sides of the base 4, a second rotating mechanism 6 and eight groups of clamping mechanisms 8 arranged on the inner side of the first rotating mechanism 5 and an adjusting mechanism 9 arranged on the clamping mechanisms 8, wherein the translation mechanisms 2 comprise a first motor 201, a one-way screw 202, a slide bar 203 and a slide block 204, the first motor 201 is fixedly arranged at the upper end of the support frame 1, the one-way screw 202 and the slide bar 203 are oppositely arranged in parallel from bottom to top, one end part of the one-way screw 202 is fixedly connected with the output end of the first motor 201, the slide block 204 slides on the slide bar 203 and rotates on the one-way screw 202, and the first motor 201 can drive the one-way screw 202 to drive the slide block 204 to slide horizontally along the slide bar 203;

The clamping mechanism 3 is arranged at the bottom end of the sliding block 204 and comprises a first hydraulic cylinder 301, a two-way cylinder 302, clamping arms 303 and clamping jaws 304, wherein the first hydraulic cylinder 301 is arranged at the bottom end of the sliding block 204, the two-way cylinder 302 is arranged at the output end of the first hydraulic cylinder 301, the clamping arms 303 are respectively symmetrically arranged at the two output ends of the two-way cylinder 302, the clamping jaws 304 are respectively arranged on the two opposite end surfaces of the two groups of clamping arms 303, the first hydraulic cylinder 301 can drive the two-way cylinder 302 to move up and down, and the two-way cylinder 302 can drive the clamping jaws 304 on the clamping arms 303 to do relative motion to clamp a chain wheel;

The first rotating mechanism 5 rotates on the base 4 and comprises a rotary table 501, a toothed ring 502, a second motor 503 and a fluted disc 504, wherein the rotary table 501 is embedded into and rotates in a limit groove 401 formed in the upper end wall of the base 4, the toothed ring 502 is sleeved and fixed on the lower end part of the rotary table 501, the second motor 503 is fixed on the outer wall of the base 4 through a fixing plate, the fluted disc 504 is fixedly arranged at the output end of the second motor 503 and is in meshed connection with the toothed ring 502, and the second motor 503 is driven to drive the rotary table 501 to rotate on the upper end part of the base 4 through the meshed connection of the toothed ring 502 and the fluted disc 504; the whole base 4 is in a ring-shaped structure, the lower end part of one side of the base 4 is provided with a cleaning opening 11, and scraps dropped by a processing chain wheel can be cleaned from the cleaning opening 11; the first rotating mechanism 5 is provided with a placing opening 5011 above the two sets of clamping blocks 903 which are oppositely arranged, and the chain wheel can be placed in the clamping mechanism 8 from the position to be clamped and fixed.

The second rotating mechanism 6 comprises a stirring disc 601, a reinforcing bottom plate 602, a reinforcing support plate 603 and a second hydraulic cylinder 604, the reinforcing bottom plate 602 is fixedly arranged on the inner wall of the rotary disc 501 through the reinforcing support plate 603, the stirring disc 601 is rotatably arranged on the upper end part of the reinforcing bottom plate 602 through a shaft collar, the second hydraulic cylinder 604 is rotatably connected to a fixing column 606 fixed at the edge of the reinforcing bottom plate 602, the output end of the second hydraulic cylinder 604 is rotatably connected to a connecting shaft 605 fixed at the bottom of the stirring disc 601, and the second hydraulic cylinder 604 can push the stirring disc 601 to rotate on the reinforcing bottom plate 602 through the connecting shaft 605; the reinforcing support plate 603 is provided with eight groups of positioning seats 7 which are arranged between the reinforcing bottom plate 602 and the turntable 501 in a surrounding manner, the positioning seats 7 are arranged below the two groups of clamping blocks 903 which are oppositely arranged on the reinforcing support plate 603, the positioning seats 7 are arranged in a conical structure, and the positioning seats 7 are positioned at the central positions of the two groups of clamping blocks 903 which are oppositely arranged, so that the positioned chain wheels can be conveniently supported; the second hydraulic cylinders 604 are respectively arranged at two sides of the upper end face of the edge of the reinforcing bottom plate 602, the conveying ends of the two groups of second hydraulic cylinders 604 are arranged in the clockwise rotation direction of the stirring disc 601, the stirring disc 601 can be driven to rotate clockwise by driving the two groups of second hydraulic cylinders 604 through the connecting shaft 605, and the long arm 801 can be stirred to swing by taking the first rotating part 806 as the axis when the stirring disc 601 rotates.

The clamping mechanism 8 comprises a long arm 801, a first connecting arm 802, a first swing arm 803, a second connecting arm 804, and second swing arms 805 and 809, wherein one end part of the long arm 801, which is close to the first connecting arm 802, is positioned at the upper end of the inner wall of the rotary disc 501 through a first rotating part 806, the first connecting arm 802 is screwed with one end part of the long arm 801, one end of the first swing arm 803, which is far away from the long arm 801, is screwed with one end of the first swing arm 803, which is far away from the first connecting arm 802, is positioned at the upper end of the inner wall of the rotary disc 501 through a second rotating part 807, one end of the second connecting arm 804 is screwed with one end of the second connecting arm 805, which is far away from the long arm 801, is positioned at the upper end of the inner wall of the rotary disc 501 through a third rotating part 808, and the connecting column is fixedly mounted at one end bottom of the long arm 801, which is close to the rotary disc 809, and is embedded in a stirring slot 6001 formed at the edge of the stirring disc 601; four groups of the eight groups of clamping mechanisms 8 are arranged in a state after four groups of the eight groups of clamping mechanisms turn over one hundred eighty degrees, when four groups of the eight groups of clamping mechanisms clamp the chain wheels, the other four groups of clamping mechanisms can loosen the clamping of the chain wheels, the chain wheels are convenient to place and take out, the central axes of the long arm 801, the first connecting arm 802, the first swing arm 803 and the second swing arm 805 are all on the same horizontal line, and two groups of clamping blocks 903 which are arranged mutually can be guaranteed to be on the same horizontal plane, so that the chain wheels can be firmly clamped.

The two groups of adjusting mechanisms 9 are respectively arranged at one side surface of the second swing arm 805 opposite to the first swing arm 803, and comprise a third motor 901, a bidirectional screw rod 902 and a clamping block 903, wherein the bidirectional screw rod 902 is fixedly arranged at the output end of the third motor 901, the clamping block 903 is symmetrically arranged on the clamping block 903, and the third motor 901 can drive the bidirectional screw rod 902 to drive the clamping block 903 to respectively perform relative motion in the first swing arm 803 and the second swing arm 805;

The storage mechanism 10 comprises a driving groove plate 1001, a fourth motor 1002, a driving screw 1003, a tray 1004 and a placing groove plate 1005, wherein the driving groove plate 1001 and the placing groove plate 1005 are integrally arranged, the fourth motor 1002 is arranged at the bottom end of the inner wall of the driving groove plate 1001, the driving screw 1003 is fixedly arranged at the output end of the fourth motor 1002, one end part of the tray 1004 is rotatably connected to the driving screw 1003 and slides up and down in the placing groove plate 1005, and the fourth motor 1002 can drive the driving screw 1003 to drive the tray 1004 to move up and down in the inner wall of the placing groove plate 1005; the middle part of tray 1004 has seted up puts thing notch 10041, and the central point of placing grooved plate 1005 and the symmetry central point of two sets of clamping jaw 304 are on same vertical cross-section, and the fourth motor 1002 on the drive thing mechanism 10 of putting can drive the rotation of drive lead screw 1003, makes the tray 1004 place behind a set of sprocket each time, descends a certain distance to accomplish the automatic centre gripping and get the dress to the sprocket, and put thing notch 10041's setting can let first place the sprocket of processing and place stably, so that follow-up placing.

Working principle: when the device is used, the device is placed at a position of processing equipment matched with the device, an external power supply is connected to the device, a plurality of groups of chain wheels are placed in the storage mechanism 10 in advance, a fourth motor 1002 is started to drive a tray 1004 to move downwards through a driving screw 1003 during placement, the toothed surfaces of the chain wheels are upwards, the chain wheels are longitudinally arranged and placed in a placement groove plate 1005, the bottom end parts of the chain wheels positioned at the bottommost end are embedded in a storage groove opening 10041, and the upper ends of the chain wheels are supported through the upper end surfaces of the tray 1004;

The second motor 503 is driven to drive the fluted disc 504 to rotate, the fluted disc 504 drives the turntable 501 to rotate on the base 4 through the toothed ring 502, so that the a group clamping mechanism 8 shown in fig. 5 moves to a preset position, the positioning seat 7 is fixed on the reinforced supporting plate 603, the second rotating mechanism 6 is fixed on the turntable 501, the positioning seat 7 synchronously rotates along with the rotation of the clamping mechanism 8, and the positioning seat 7 is positioned at the central positions of two groups of clamping blocks 903 which are oppositely arranged, so that the placed chain wheels are conveniently supported.

A group of first motors 201 for taking out the chain wheels to be processed are driven to transversely move the sliding blocks 204 along the sliding rods 203 to the position above a group of storage mechanisms 10 for placing the chain wheels to be processed through the one-way lead screws 202, the first hydraulic cylinders 301 are started to push the two groups of clamping jaws 304 to move to the two sides of the uppermost chain wheel on the storage mechanisms 10, then the two-way cylinders 302 are started to shrink piston rods, the clamping jaws 304 are driven to be tightened through the clamping arms 303 to clamp the clamping jaws 304 to clamp the chain wheels, the first hydraulic cylinders 301 are started to lift the chain wheels upwards, the first motors 201 are started to drive the sliding blocks 204 to move to the position above the group a clamping mechanisms 8 which reach the preset position, the center of the chain wheels is located right above the center of the positioning seat 7, the first hydraulic cylinders 301 are started to send the chain wheels to the positioning seat 7, the bottom center through holes of the chain wheels are sleeved on the upper ends of the positioning seat 7, and the two-way cylinders 302 can be started to loosen the chain wheels, so that the placement of the group of chain wheels is completed;

Continuously driving the second motor 503 to sequentially move the groups b, c and d shown in fig. 5 to the position of the original a in turn, placing the chain wheels one by one through the steps, after the group d is placed, d is positioned at the position of the original a at the moment, a is positioned at the position of the original f, simultaneously driving the two groups of second hydraulic cylinders 604 to stir the stirring disc 601 to rotate clockwise through the connecting shaft 605, stirring the long arm 801 to swing around the first rotating part 806 when the stirring disc 601 rotates, reversely tilting the long arm 801 at one end screwed with the first connecting arm 802, pushing the first swing arm 803 screwed with the first connecting arm 802 to swing around the second rotating part 807 through the first connecting arm 802, and driving the two opposite clamping blocks 903 to move relatively to the first swing arm 803 through the first connecting arm 802, and further driving the two opposite clamping blocks 903 to move relatively to the second swing arm 803 through the second swing arm 803, so that the two opposite clamping blocks 903 are clamped relatively to each other, and the two opposite clamping blocks 903 can be clamped relatively to each other, and the two opposite clamping blocks are clamped by the two clamping blocks 903;

As shown in fig. 5, 10 and 11, the structures of the group a clamping mechanism 8, the group b clamping mechanism 8, the group c clamping mechanism 8, the group d clamping mechanism 8, the group e clamping mechanism 8, the group f clamping mechanism 8, the group g clamping mechanism 8 and the group h clamping mechanism 8 are identical, wherein the group e, the group f, the group g and the group h are all arranged in a way of turning one hundred eighty degrees;

a. When the group b, c and d clamping mechanisms 8 are driven by the driving disc 601 to rotate clockwise, the chain wheel is clamped, while the long arm 801 in the group e, f, g and h can drive the long arm 801 to swing by taking the first rotating part 806 as the axis when the driving disc 601 is pushed, the long arm 801 at one end which is rotationally connected with the first connecting arm 802 can reversely tilt, the first swing arm 803 rotationally connected with the first connecting arm 802 is pulled by the first connecting arm 802 to swing by taking the second rotating part 807 as the axis, because one end of the second connecting arm 804 is rotationally connected with one end of the long arm 801 which is close to the driving disc 601, the second swing arm 805 can be driven by the second connecting arm 804 to swing by taking the third rotating part 808 as the axis, so that one end part of the first swing arm 803 far away from the second rotating part 807 and one end of the second swing arm 805 far away from the third rotating part 808 do opposite movement, and the distances between two groups of clamping blocks 903 on the first swing arm 803 and the second swing arm 805 are further increased;

the four groups of chain wheels fixed on the groups a, b, c and d of clamping mechanisms 8 are correspondingly processed, after the group a of chain wheels are processed, the turntable 501 can be driven to rotate through the second motor 503, so that the chain wheels to be processed of the object placing mechanism 10 can be continuously processed through the second motor 503, after the last group d is processed, d is positioned at the position of the original f, when the group e, f and g pass through the position of the original a, as the distance between the first swing arm 803 and the two groups of clamping blocks 903 on the second swing arm 805 becomes far, the chain wheels to be processed can be grabbed by the clamping mechanisms 3 to be placed on the clamping mechanisms 8 of the groups e, f and g, at the moment, the chain wheels to be processed are continuously driven to rotate through the second motor 503, so that h is clockwise moved to the position of the original a, the chain wheels to be processed of the object placing mechanism 10 are placed in the h through the clamping mechanisms 3, at the moment, namely, the chain wheels to be processed are all placed on the clamping mechanisms 8 of the groups e, f, g and h, the second hydraulic cylinder 604 can be driven, the poking disc 601 is driven to rotate, the eight groups of clamping mechanisms are reversely contracted, the groups of the chain wheels to be well clamped by the two groups of the clamping mechanisms are well arranged, the chain wheels to be well clamped by the clamping mechanisms to be placed on the clamping mechanisms 8, and the groups of the group c, and the group c are well clamped by the clamping mechanisms are well, and the group c is well clamped by the clamping mechanisms are placed in the clamping mechanisms 8, and the clamping mechanisms are well, and the group c is well clamped by the clamping mechanism is well, and is well clamped by the group clamping mechanism is well, and well clamped;

When the group of translation mechanisms 2 is operated to take off the chain wheels from the clamping mechanism 8 and put into another group of placement mechanisms 10, the fourth motor 1002 on the placement mechanism 10 is driven to drive the driving screw 1003 to rotate, so that after each group of chain wheels are placed on the tray 1004, the chain wheels are lowered for a certain distance, automatic clamping and taking-up of the chain wheels are completed, and the placement notch 10041 is arranged, so that the first placed and processed chain wheels can be placed stably, and the subsequent placement is facilitated.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.

Claims (8)

1. Positioning fixture for sprocket-based production and processing, including support frame (1), two sets of translation mechanism (2) of relative setting between two sets of support frames (1), set up clamp on translation mechanism (2) get mechanism (3), set up base (4) and first rotation mechanism (5) in translation mechanism (2) below, set up put thing mechanism (10) in base (4) both sides, set up second rotation mechanism (6) and eight sets of fixture (8) and adjustment mechanism (9) of setting on fixture (8) in first rotation mechanism (5) inboard, its characterized in that: the translation mechanism (2) comprises a first motor (201), a one-way screw (202), a sliding rod (203) and a sliding block (204), wherein the first motor (201) is fixedly arranged at the upper end of the support frame (1), the one-way screw (202) and the sliding rod (203) are relatively arranged in parallel from bottom to top, one end part of the one-way screw (202) is fixedly connected with the output end of the first motor (201), the sliding block (204) slides on the sliding rod (203) and rotates on the one-way screw (202), and the first motor (201) can drive the one-way screw (202) to drive the sliding block (204) to horizontally slide along the sliding rod (203);

The clamping mechanism (3) is arranged at the bottom end of the sliding block (204) and comprises a first hydraulic cylinder (301), a two-way air cylinder (302), clamping arms (303) and clamping jaws (304), the first hydraulic cylinder (301) is arranged at the bottom end of the sliding block (204), the two-way air cylinder (302) is arranged at the output end of the first hydraulic cylinder (301), the clamping arms (303) are respectively and symmetrically arranged at the two output ends of the two-way air cylinder (302), the clamping jaws (304) are respectively arranged on two groups of opposite side end surfaces of the clamping arms (303), the first hydraulic cylinder (301) can drive the two-way air cylinder (302) to move up and down, and the clamping jaws (304) on the clamping arms (303) can be driven to move relatively to clamp the chain wheels;

the first rotating mechanism (5) rotates on the base (4) and comprises a rotary table (501), a toothed ring (502), a second motor (503) and a fluted disc (504), wherein the rotary table (501) is embedded and rotates in a limit groove (401) formed in the upper end wall of the base (4), the toothed ring (502) is sleeved and fixed at the lower end part of the rotary table (501) in a surrounding mode, the second motor (503) is fixed on the outer wall of the base (4) through a fixing plate, the fluted disc (504) is fixedly installed at the output end of the second motor (503) and is meshed and connected with the toothed ring (502), and the second motor (503) is driven to rotate at the upper end part of the base (4) through meshed connection of the toothed ring (502) and the fluted disc (504).

The second rotating mechanism (6) comprises a stirring disc (601), a reinforcing bottom plate (602), a reinforcing supporting plate (603) and a second hydraulic cylinder (604), the reinforcing bottom plate (602) is fixedly installed on the inner wall of the rotary disc (501) through the reinforcing supporting plate (603), the stirring disc (601) is rotatably installed on the upper end part of the reinforcing bottom plate (602) through a shaft collar, the second hydraulic cylinder (604) is rotatably connected to a fixing column (606) fixed at the edge of the reinforcing bottom plate (602), the output end of the second hydraulic cylinder (604) is rotatably connected to a connecting shaft (605) fixed at the bottom of the stirring disc (601), and the second hydraulic cylinder (604) can push the stirring disc (601) to rotate on the reinforcing bottom plate (602) through the connecting shaft (605);

The clamping mechanism (8) comprises a long arm (801), a first connecting arm (802), a first swing arm (803), a second connecting arm (804), a second swing arm (805) and a connecting column (809), wherein one end part of the long arm (801) close to the first connecting arm (802) is positioned at the upper end of the inner wall of the turntable (501) through a first rotating part (806), the first connecting arm (802) is rotatably connected with one end part of the long arm (801), one end of the first swing arm (803) far away from the long arm (801) is rotatably connected with one end of the first connecting arm (802), one end of the first swing arm (803) far away from the first connecting arm (802) is positioned at the upper end of the inner wall of the turntable (501) through a second rotating part (807), one end of the second connecting arm (805) is rotatably connected with the middle position of the long arm (801), the second end (805) far away from the first end (808) is positioned at the upper end of the turntable (501) through a second rotating part (805), the connecting column (809) is fixedly arranged at the bottom of one end, close to the poking disc (601), of the long arm (801) and is embedded into a poking notch (6001) formed in the edge of the poking disc (601);

The two groups of adjusting mechanisms (9) are respectively arranged at one side surface of the second swing arm (805) opposite to the first swing arm (803), the two groups of adjusting mechanisms comprise a third motor (901), a bidirectional screw (902) and a clamping block (903), the bidirectional screw (902) is fixedly arranged at the output end of the third motor (901), the clamping block (903) is symmetrically arranged on the clamping block (903), and the third motor (901) can drive the bidirectional screw (902) to drive the clamping block (903) to respectively perform relative motion in the first swing arm (803) and the second swing arm (805);

The storage mechanism (10) comprises a driving groove plate (1001), a fourth motor (1002), a driving screw (1003), a tray (1004) and a placing groove plate (1005), wherein the driving groove plate (1001) and the placing groove plate (1005) are integrally arranged, the fourth motor (1002) is installed at the bottom end of the inner wall of the driving groove plate (1001), the driving screw (1003) is fixedly installed at the output end of the fourth motor (1002), one end of the tray (1004) is rotationally connected to the driving screw (1003) and slides up and down in the placing groove plate (1005), and the fourth motor (1002) can drive the driving screw (1003) to drive the tray (1004) to move up and down in the inner wall of the placing groove plate (1005).

2. The positioning jig for sprocket based manufacturing process according to claim 1, wherein: four of the eight groups of clamping mechanisms (8) are arranged in a state that the other four groups are turned one hundred eighty degrees.

3. The positioning jig for sprocket based manufacturing process according to claim 2, wherein: the reinforcing support plate (603) is provided with eight groups of positioning seats (7) which are arranged below two groups of clamping blocks (903) oppositely and are arranged on the reinforcing support plate (603) in a surrounding mode and are arranged between the reinforcing bottom plate (602) and the rotary table (501), and the positioning seats (7) are arranged in a conical structure.

4. The positioning jig for sprocket based manufacturing process according to claim 3, wherein: the base (4) is integrally arranged in a circular ring structure, and a cleaning opening (11) is formed in the lower end portion of one side of the base (4).

5. The positioning fixture for sprocket based manufacturing process according to claim 4, wherein: the first rotating mechanism (5) is provided with a placing port (5011) positioned above the two groups of clamping blocks (903) which are oppositely arranged.

6. The positioning fixture for sprocket based manufacturing process according to claim 5, wherein: the middle part of the tray (1004) is provided with a storage notch (10041), and the center point of the storage groove plate (1005) and the symmetrical center points of the two groups of clamping jaws (304) are on the same vertical section.

7. The positioning fixture for sprocket based manufacturing process according to claim 4, wherein: the second hydraulic cylinders (604) are respectively arranged on two sides of the upper end face of the edge of the reinforcing bottom plate (602), and the output ends of the two second hydraulic cylinders (604) are arranged in the clockwise rotation direction of the poking disc (601).

8. The positioning jig for sprocket based manufacturing process according to claim 6, wherein: the central axes of the long arm (801), the first connecting arm (802), the first swing arm (803) and the second swing arm (805) are all on the same horizontal line.