CN217727810U - Automatic model changing mechanism for automobile seat slide rail assembly line tray - Google Patents

Abstract

The utility model provides an automatic remodeling mechanism of car seat slide rail assembly line tray, it includes: the tray device is arranged on the frame; the supporting block locking mechanism is arranged at the bottom of the tray device and used for locking the tray device; the servo device is connected with the tray supporting block unlocking and adjusting mechanism, and drives the tray supporting block unlocking and adjusting mechanism to move along the guide rail component; when the tray supporting block unlocking and adjusting mechanism moves to be close to the tray device, the tray supporting block unlocking and adjusting mechanism is used for unlocking the tray device. The utility model discloses a when the product remodels, tray supporting shoe position is according to different model automatic adjustment, and the supporting shoe is automatic to be locked, reduces the remodel time, improves tray supporting shoe position adjustment accuracy. The single remodeling time is reduced from 30 minutes to 10 minutes, the remodeling time is reduced from 420 minutes to 120 minutes per day, and the production efficiency is improved by 20 percent.

Description

Automatic model changing mechanism for automobile seat slide rail assembly line tray

Technical Field

The utility model relates to a car seat slide rail assembly process field, in particular to car seat slide rail assembly line tray is from moving type mechanism, belongs to the assembly line and moves type automatically.

Background

In the prior art, a vehicle seat slide rail is composed of a male rail, a female rail and accessory parts, and the male rail and the female rail need to be assembled on a slide rail assembly line. Public rail and female rail need place and assemble on the tray, because the pluralism of customer and product, the product model is various, female rail bottom surface gasket, pin equipotential position diverse, and the supporting shoe position of tray needs to be adjusted.

Fig. 1 is a schematic view of a slide rail structure in the prior art. Fig. 2 is a schematic view of a prior art pallet. Fig. 3 is a schematic diagram illustrating placement of a male rail and a female rail in the prior art. FIG. 4 is a schematic view of bottom surface components and supporting positions of a prior art female rail.

As shown in fig. 1 to 3, the slide rail for the seat of the automobile includes a male rail 10, a female rail 11, a holder 12, a female rail accessory 13, a screw 14, and a slide rail assembly line 15, which are assembled together. The tray 20 is provided with a male rail positioning block 21, a male rail supporting block 22, a female rail positioning block 23 and a female rail supporting block 24, which are respectively used for assembling the male rail 10 and the female rail 11, and the positions of the supporting blocks are adjusted back and forth after the screws are loosened manually. And finally, the male rail 10 is arranged on a male rail positioning block 21 and a male rail supporting block 22, and the female rail 11 is arranged on a female rail positioning block 23 and a female rail supporting block 24.

As shown in fig. 4, the supporting block can be adjusted according to different models, so as to avoid parts on the bottom surface of the mother rail, such as a gasket, a pin and the like.

Therefore, when the production line is used for switching different product models for production, the position of the supporting block needs to be manually adjusted, and the supporting block needs to be locked and fixed after the position of the supporting block is determined.

In addition, the original remodeling process is as follows:

1. emptying the tray of the existing model;

2. selecting a new model by the upper computer;

3. clicking to change the model;

4. adjusting the positions of all the tray supporting blocks;

5. manually locking the supporting block;

6. and finishing the model change.

The production line has 45 trays and 22 models in co-production, the models are changed averagely 12 times every day, the models are changed 30 minutes each time (the trays are manually adjusted for 23 minutes), and the model changing time is 420 minutes every day.

In view of the above, the inventor of the present application has designed an automatic tray changing mechanism for an assembly line of seat sliding rails of an automobile, in order to overcome the above technical problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that in order to overcome among the prior art car seat slide rail loaded down with trivial details, the spare part is many, and defect such as the consuming time and the power of remodeling provides an automatic remodeling mechanism of car seat slide rail assembly line tray.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides an automatic remodeling mechanism of car seat slide rail assembly line tray which characterized in that, automatic remodeling mechanism of car seat slide rail assembly line tray includes:

the tray device is arranged on the rack;

the supporting block locking mechanism is arranged at the bottom of the tray device and used for locking the tray device;

the tray supporting block unlocking and adjusting mechanism is arranged on the rack, the tray supporting block unlocking and adjusting mechanism is arranged on the guide rail component, and the servo device is connected with the tray supporting block unlocking and adjusting mechanism and drives the tray supporting block unlocking and adjusting mechanism to move along the guide rail component;

and when the tray supporting block unlocking and adjusting mechanism moves to be close to the tray device, the tray supporting block unlocking and adjusting mechanism is used for unlocking the tray device.

According to the utility model discloses an embodiment, the tray device includes tray base, female rail supporting shoe and supporting seat guide rail set spare, supporting seat guide rail set spare is installed on the tray base, female rail supporting shoe is connected with sliding on the supporting seat guide rail set spare, supporting shoe locking mechanism installs the bottom of female rail supporting shoe is located in the supporting seat guide rail set spare.

According to the utility model discloses an embodiment, supporting seat guide rail set spare includes guide rail and two guide slots, the guide rail is arranged between the guide slot, female rail supporting shoe is installed on the guide rail, supporting shoe locking mechanical system installs guide rail and one of them between the guide slot.

According to an embodiment of the utility model, the supporting block locking mechanism comprises a fixed wedge block, a first reset spring, a first wedge block, a second reset spring, a limiting sleeve and an adjusting wedge block, wherein a first mounting hole is formed in one end part of the first wedge block, one end part of the first reset spring is mounted in the first mounting hole, and the other end part of the first reset spring is abutted against the inner side wall surface of one end part of the fixed wedge block;

a second mounting hole is formed in the other end of the fixed wedge block, a third mounting hole is formed in one end of the adjusting wedge block, the limiting sleeve is sleeved on the second return spring, and two ends of the second return spring are respectively mounted in the second mounting hole and the third mounting hole;

the first wedge is located above the fixed wedge and the adjusting wedge.

According to an embodiment of the present invention, a first inclined plane is disposed at a bottom of an end of the first wedge, a second inclined plane is disposed at an upper end of an end of the fixed wedge, and the first inclined plane and the second inclined plane are vertically matched;

the bottom of the other end of the first wedge block is provided with a third inclined surface, the upper end surface of the adjusting wedge block is provided with a fourth inclined surface, and the third inclined surface is vertically matched with the fourth inclined surface.

According to an embodiment of the present invention, the fixing wedge block has at least one hole formed thereon, and the fixing wedge block is fixed to the bottom of the mother rail support block through the hole.

According to an embodiment of the utility model, the tray supporting block unlocking and adjusting mechanism comprises a base, an adjusting pin cylinder, a second wedge block, an adjusting rod, a third return spring, an adjusting pin and an unlocking block, wherein the second wedge block is placed on the base, and the adjusting pin cylinder is connected with the second wedge block and drives the second wedge block to move along the base;

one end part of the adjusting rod is rotatably arranged at the upper part of the base and is in contact with the upper end surface of the second wedge block, the adjusting pin is connected with the other end part of the adjusting rod through the third return spring and downwards penetrates through the base, and the unlocking block is arranged at the outer side of the bottom of the base and is positioned at the rear side of the adjusting pin;

the base is slidably mounted on the rail assembly such that the unlocking block and the adjustment pin are closer to or farther from the tray device.

According to the utility model discloses an embodiment, a through-hole has been seted up on the bottom plate of female rail supporting shoe, works as tray supporting shoe unblock guiding mechanism removes to being close to during the female rail supporting shoe, the adjusting pin inserts in the through-hole.

According to an embodiment of the present invention, both ends of the adjusting rod are respectively in a hook shape.

According to the utility model discloses an embodiment, the lateral part of base is provided with a erection column, the erection column is followed the base upwards extends, is located the top of base, an end of adjusting lever with the erection column rotates to be connected.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses automatic remodeling mechanism of car seat slide rail assembly line tray has realized when the product remodels, and tray supporting shoe position is according to different model automatic adjustment, and the supporting shoe is automatic to be locked, reduces remodeling time, improves tray supporting shoe position adjustment accuracy. The single remodeling time is reduced from 30 minutes to 10 minutes, and the remodeling time is reduced from 420 minutes to 120 minutes per day (approximately remodeling for 10 times per day), so that the production efficiency is improved by 20 percent.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which like reference characters refer to like features throughout, and in which:

fig. 1 is a schematic view of a slide rail structure in the prior art.

Fig. 2 is a schematic view of a prior art pallet.

Fig. 3 is a schematic diagram illustrating placement of a male rail and a female rail in the prior art.

FIG. 4 is a schematic view of bottom surface components and supporting positions of a prior art female rail.

Fig. 5 is a first perspective view of the automatic model changing mechanism for the tray of the assembly line of the automobile seat and slide rail of the utility model.

Fig. 6 is a second perspective view of the automatic model changing mechanism for the pallet of the assembly line of the automobile seat slide rail of the utility model.

Fig. 7 is the structural schematic diagram of the tray in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

Fig. 8 is an exploded schematic view of the supporting block locking mechanism in the automatic model changing mechanism of the automobile seat slide rail assembly line tray of the utility model.

Fig. 9 is a force-bearing schematic diagram of a supporting block locking mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

Fig. 10 is a schematic structural diagram of the supporting block locking mechanism in the automatic model changing mechanism of the automobile seat slide rail assembly line tray of the present invention in a locked state.

Fig. 11 is the structural schematic diagram of the tray supporting block unlocking and adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

Fig. 12 is a schematic diagram of a first adjusting step of the tray supporting block unlocking and adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

Fig. 13 is a schematic diagram of the second adjusting step of the tray supporting block unlocking and adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

Fig. 14 is a schematic diagram of a third adjusting step of the tray supporting block unlocking adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

[ reference numerals ]

Public rail 10

Mother rail 11

Cage 12

Mother rail accessory 13

Screw 14

Slide rail assembly line 15

Tray 20

Public rail positioning block 21

Public rail supporting block 22

Mother rail positioning block 23

Mother rail support block 24, 42

Rack 30

Tray device 40

Support block locking mechanism 50

Pallet support block unlocking adjustment mechanism 60

Servo device 70

Guide rail assembly 80

Tray base 41

Support seat guide rail assembly 43

Guide rail 431

Guide groove 432

Fixed wedge 51

First return spring 52

First wedge 53

Second return spring 54

Position limiting sleeve 55

Adjusting wedge 56

First mounting hole 531

Second mounting hole 511

Third mounting hole 561

First inclined surface 532

Second inclined surface 512

Third inclined surface 533

Fourth inclined surface 562

Hole 513

First gap A

Second gap B

Base 61

Adjusting pin cylinder 62

Second wedge 63

Adjusting rod 64

Third return spring 65

Adjusting pin 66

Unlocking block 67

Through hole 421

Mounting post 68

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

Fig. 5 is a first perspective view of the automatic model changing mechanism for the tray of the assembly line of the automobile seat and slide rail of the utility model. Fig. 6 is a second perspective view of the automatic model changing mechanism for the tray of the assembly line of the automobile seat and slide rail of the utility model.

As shown in fig. 5 and 6, the utility model discloses an automatic remodelling mechanism of car seat slide rail assembly line tray, it includes: the rack 30 and the tray device 40, the support block locking mechanism 50, the tray support block unlocking adjustment mechanism 60, the servo device 70 and the guide rail assembly 80. Wherein the tray device 40 is mounted on the frame 30. A support block locking mechanism 50 is mounted at the bottom of the tray unit 40 for locking the tray unit 40. The guide rail assembly 80 is installed on the frame 30, the tray support block unlocking and adjusting mechanism 60 is installed on the guide rail assembly 80, and the servo device 70 is connected with the tray support block unlocking and adjusting mechanism 60 to drive the tray support block unlocking and adjusting mechanism 60 to move along the guide rail assembly 80. When the tray support block unlocking adjustment mechanism 60 is moved close to the tray device 40, it is used to unlock the tray device 40.

Fig. 7 is the structural schematic diagram of the tray in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

As shown in fig. 7, the tray device 40 includes a tray base 41, a female rail support block 42 and a support seat rail assembly 43, the support seat rail assembly 43 is installed on the tray base 41, the female rail support block 42 is slidably connected to the support seat rail assembly 43, and the support block locking mechanism 50 is installed at the bottom of the female rail support block 42 and is located in the support seat rail assembly 43.

Preferably, the supporting shoe rail assembly 43 may include a rail 431 and two guide grooves 432, the rail 431 is disposed between the guide grooves 432, the female rail support block 42 is mounted on the rail 431, and the support block locking mechanism 50 is mounted between the rail 431 and one of the guide grooves 432.

Fig. 8 is an exploded schematic view of the supporting block locking mechanism in the automatic model changing mechanism of the automobile seat slide rail assembly line tray of the utility model.

As shown in fig. 8, the support block locking mechanism 50 includes a fixed wedge 51, a first return spring 52, a first wedge 53, a second return spring 54, a stop collar 55, and an adjusting wedge 56. One end of the first wedge 53 has a first mounting hole 531, one end of the first return spring 52 is mounted in the first mounting hole 531, and the other end abuts against an inner side wall surface of one end of the fixed wedge 51. The other end of the fixed wedge 51 has a second mounting hole 511, and one end of the adjustable wedge 56 has a third mounting hole 561. The second return spring 54 is sleeved with the position limiting sleeve 55, and both ends of the second return spring 54 are respectively installed in the second installation hole 511 and the third installation hole 561. The first wedge 53 is located above the fixed wedge 51 and the adjusting wedge 56.

Preferably, a first inclined surface 532 is provided at the bottom of one end of the first wedge 53, a second inclined surface 512 is provided at the upper end of one end of the fixed wedge 51, and the first inclined surface 532 is vertically engaged with the second inclined surface 512. A third inclined surface 533 is provided at the bottom of the other end of the first wedge 53, a fourth inclined surface 562 is provided on the upper end surface of the adjusting wedge 56, and the third inclined surface 533 and the fourth inclined surface 562 are vertically engaged with each other.

In addition, at least one hole 513 is formed in the fixed wedge 51, and the fixed wedge 51 is fixed to the bottom of the female rail support block 42 through the hole 513.

Fig. 9 is a force-bearing schematic diagram of a supporting block locking mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

As shown in fig. 9, when the original supporting block locking mechanism 50 is in a locked state, and the first restoring spring 52 applies a horizontal elastic force F1 to the first wedge 53, the first wedge 53 is driven by the horizontal elastic force F1 to move to the right, and simultaneously the first wedge 53 moves upward, so that the width W increases to tighten the locking mechanism.

The adjusting wedge 56 moves to the right under the action of the spring force F2, and simultaneously the first wedge 53 moves upwards, and the width W increases the tightening of the locking mechanism.

At this time, the clamping force is calculated as:

assuming that the model of the first return spring 52 is WH8 — 40, in the locked state, the first return spring 52 is compressed by 10mm, and has a spring constant of 5.9N/mm, F2=10x5.9=59n, and an angle of 12.5 °.

The clamping force F20 ≈ F2/tan12.5 ≈ 59/0.22 ≈ 268N, and the required clamping force is greater than 100N.

Fig. 10 is a schematic structural diagram of the supporting block locking mechanism in the automatic model changing mechanism of the automobile seat slide rail assembly line tray of the present invention in a locking state.

As shown in fig. 10, the state after the support block locking mechanism 50 is unlocked is:

when the pallet support block unlocking adjustment mechanism 60 applies an unlocking force F to the adjusting wedge 56, the adjusting wedge 56 moves leftward against the spring force;

when the adjusting wedge block 56 contacts the first wedge block 53, a thrust force F1 is applied to the first wedge block 53, and the first wedge block 53 moves to the left against the spring force to reach a dead limit position;

at this time, the first gap a and the second gap B are formed at the left and right ends, the tension force disappears, and W is reduced, so that the female rail support block 42 can move freely.

Fig. 10 is a schematic structural diagram of the supporting block locking mechanism in the automatic model changing mechanism of the automobile seat slide rail assembly line tray of the present invention in a locked state. Fig. 11 is the structural schematic diagram of the tray supporting block unlocking and adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

As shown in fig. 10 and 11, the tray support block unlocking adjustment mechanism 60 includes a base 61, an adjustment pin cylinder 62, a second wedge 63, an adjustment lever 64, a third return spring 65, an adjustment pin 66, and an unlocking block 67. Wherein, the second wedge 63 is placed on the base 61, and the adjusting pin cylinder 62 is connected with the second wedge 64 to drive the second wedge 63 to move along the base 61.

One end of the adjusting lever 64 is rotatably installed on the upper portion of the base 61 to be in contact with the upper end surface of the second wedge 63, the adjusting pin 66 is connected to the other end of the adjusting lever 64 by the third return spring 65, the adjusting pin 66 downwardly passes through the base 61, and the unlocking block 67 is installed on the outer side of the bottom of the base 61 at the rear side of the adjusting pin 66.

Both ends of the adjusting lever 64 are preferably provided in a hook shape here, respectively.

The base 61 is slidably mounted on the rail assembly 80 such that the unlocking block 67 and the adjustment pin 66 are closer to or farther from the tray apparatus 40.

Further, a through hole 421 is opened on the bottom plate of the female rail supporting block 42, and when the tray supporting block unlocking adjustment mechanism 60 moves to be close to the female rail supporting block 42, the adjustment pin 66 is inserted into the through hole 421.

In addition, a mounting post 68 is provided at a side portion of the base 61, the mounting post 68 extends upward along the base 61 and is located above the base 61, and one end portion of the adjusting lever 64 is rotatably connected to the mounting post 68.

Fig. 12 is a schematic diagram of a first adjusting step of the tray supporting block unlocking and adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model. Fig. 13 is a schematic diagram of a second adjusting step of the tray supporting block unlocking adjusting mechanism in the automatic model changing mechanism for the tray of the automobile seat slide rail assembly line of the utility model. Fig. 14 is a schematic diagram of a third adjusting step of the tray supporting block unlocking adjusting mechanism in the automatic model changing mechanism of the tray of the automobile seat slide rail assembly line of the utility model.

As shown in fig. 12 to 14, the adjustment principle of the tray support block unlocking adjustment mechanism 60 is as follows:

step one, the servo device 70 drives the whole adjusting mechanism to move towards the front end of the equipment, the unlocking block 67 is unlocked, the unlocking block 67 continues to push forwards, and the mother rail supporting block 42 is pushed to a preset position;

step two, after the female rail supporting block 42 reaches a preset position, the air cylinder acts to push the second wedge block 63 to move forwards, the adjusting rod 64 is pressed downwards, and the adjusting pin 66 moves downwards to be inserted into the pin hole of the female rail supporting block 42;

and step three, the adjusting pin 66 is inserted into the through hole 421, and the whole tray supporting block unlocking adjusting mechanism 60 retreats under the drive of the servo mechanism to adjust the female rail supporting block 42 to the setting position.

According to the structure description, the utility model discloses car seat slide rail assembly line tray is automatic remodel the type operation flow of remodeling mechanism does:

1. emptying the tray of the existing model;

2. selecting a new model by the upper computer;

3. clicking to change the model;

4. the servo device drives the tray supporting block unlocking and adjusting mechanism to move towards the direction of the tray device, and the supporting block locking mechanism is unlocked and moved to a fixed position;

5. the adjusting pin is inserted into the through hole of the base;

6. the servo device drives the tray supporting block unlocking and adjusting mechanism to move back to a setting position;

7. pulling out the adjusting pin, locking the mother rail supporting block by the supporting block locking mechanism, and operating the servo device to the original position;

8. and finishing the model changing.

Specifically, the automatic model changing mechanism firstly empties the tray, selects a model changing program, the empty tray runs to a model changing station, the servo device drives the tray supporting block unlocking and adjusting mechanism to unlock the female rail supporting seat, and the tray supporting block unlocking and adjusting mechanism continues to run forwards and runs to a preset value position. The adjusting pin cylinder is deep forward, the adjusting pin extends downwards under the lever action, the adjusting pin is inserted into the adjusting pin hole of the supporting seat, and the servo motor retreats. Meanwhile, the adjusting pin hooks the supporting seat to synchronously retreat and is pushed to a set position (set according to different models), the adjusting pin cylinder retracts, the adjusting pin retracts and is servo to the original position, the adjusted trays flow to a lower station, and the type changing process is repeated for all the trays until all the trays are finished (for example, 45 trays are totally finished).

The automatic model changing mechanism for the automobile seat slide rail assembly line tray is additionally provided with a servo driver, a tray supporting block locking mechanism and a tray supporting block unlocking and adjusting mechanism at a model changing station of a production line and is linked with an upper computer. The parameters of the adjusting positions of different models are set on the upper computer in advance, the parameters of corresponding models are transmitted to the PLC by the upper computer after model changing, and the servo motor moves to the corresponding position according to the parameters. When the tray is moved, the tray supporting block unlocking and adjusting mechanism unlocks the tray, the tray is pushed to a fixed position, the adjusting pin is inserted into the through hole (such as the pin hole), the adjusting pin is pulled backwards to a set position, the adjusting pin is pulled out, the servo driver returns to the original position, the female rail supporting block is locked, and the model changing is finished.

To sum up, the utility model discloses automatic remodelling mechanism of car seat slide rail assembly line tray has realized that the tray supporting shoe position is according to different model automatic adjustment, and the supporting shoe is automatic to be locked when the product remodels, reduces the remodelling time, improves tray supporting shoe position adjustment accuracy. The single-time model changing time is reduced from 30 minutes to 10 minutes, the model changing time is reduced from 420 minutes to 120 minutes per day (about model changing is carried out for 10 times per day), and the production efficiency is improved by 20 percent.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims (10)

1. The utility model provides an automatic mechanism that remodels of car seat slide rail assembly line tray, its characterized in that, automatic mechanism that remodels of car seat slide rail assembly line tray includes:

the tray device is arranged on the rack;

the supporting block locking mechanism is arranged at the bottom of the tray device and used for locking the tray device;

the tray supporting block unlocking and adjusting mechanism is mounted on the rack, the tray supporting block unlocking and adjusting mechanism is mounted on the guide rail component, and the servo device is connected with the tray supporting block unlocking and adjusting mechanism and drives the tray supporting block unlocking and adjusting mechanism to move along the guide rail component;

and when the tray supporting block unlocking and adjusting mechanism moves to be close to the tray device, the tray supporting block unlocking and adjusting mechanism is used for unlocking the tray device.

2. The automatic remodeling mechanism for pallet in an assembly line of automotive seat tracks as claimed in claim 1, wherein said pallet means comprises a pallet base, a female track support block and a support seat track assembly, said support seat track assembly being mounted on said pallet base, said female track support block being slidably connected to said support seat track assembly, said support block locking mechanism being mounted at the bottom of said female track support block, being located in said support seat track assembly.

3. The automatic remodeling mechanism for pallet in an assembly line of automotive seat tracks as claimed in claim 2, wherein said supporting seat track assembly comprises a track and two guide slots, said track being disposed between said guide slots, said female track support block being mounted on said track, said support block locking mechanism being mounted between said track and one of said guide slots.

4. The automatic model changing mechanism for the automobile seat slide rail assembly line tray as claimed in claim 3, wherein the supporting block locking mechanism comprises a fixed wedge block, a first return spring, a first wedge block, a second return spring, a limiting sleeve and an adjusting wedge block, wherein a first mounting hole is formed in one end part of the first wedge block, one end part of the first return spring is mounted in the first mounting hole, and the other end part of the first return spring abuts against the inner side wall surface of one end part of the fixed wedge block;

a second mounting hole is formed in the other end of the fixed wedge block, a third mounting hole is formed in one end of the adjusting wedge block, the limiting sleeve is sleeved on the second reset spring, and two ends of the second reset spring are mounted in the second mounting hole and the third mounting hole respectively;

the first wedge is located above the fixed wedge and the adjusting wedge.

5. The automatic remodeling mechanism for pallets in an assembly line of seat tracks of an automobile as claimed in claim 4, wherein a first inclined surface is provided at the bottom of one end of said first wedge, a second inclined surface is provided at the upper end of one end of said fixed wedge, and said first inclined surface and said second inclined surface are vertically matched;

the bottom of the other end of the first wedge block is provided with a third inclined surface, the upper end surface of the adjusting wedge block is provided with a fourth inclined surface, and the third inclined surface is vertically matched with the fourth inclined surface.

6. The automatic remodeling mechanism for automobile seat slide assembly line tray as claimed in claim 5, wherein said fixing wedge is provided with at least one hole, and said fixing wedge is fixed to the bottom of said mother rail support block through said hole.

7. The automatic remodeling mechanism for automobile seat slide assembly line tray as claimed in claim 4, wherein said tray support block unlocking and adjusting mechanism comprises a base, an adjusting pin cylinder, a second wedge block, an adjusting rod, a third return spring, an adjusting pin and an unlocking block, said second wedge block is placed on said base, said adjusting pin cylinder is connected with said second wedge block to drive said second wedge block to move along said base;

one end part of the adjusting rod is rotatably arranged at the upper part of the base and is in contact with the upper end surface of the second wedge block, the adjusting pin is connected with the other end part of the adjusting rod through the third return spring, the adjusting pin downwards penetrates through the base, and the unlocking block is arranged on the outer side of the bottom of the base and is positioned at the rear side of the adjusting pin;

the base is slidably mounted on the rail assembly such that the unlocking block and the adjustment pin are closer to or farther from the tray device.

8. The automatic remodeling mechanism for pallet on assembly line of seat tracks in an automobile according to claim 7, wherein a through hole is opened on the bottom plate of said female track support block, and when said pallet support block unlocking adjustment mechanism moves close to said female track support block, said adjustment pin is inserted into said through hole.

9. The automatic remodeling mechanism for pallet in an assembly line of seat tracks of an automobile as claimed in claim 7, wherein said adjusting rod has two ends in the shape of hooks.

10. The automatic remodeling mechanism for tray of assembly line of slide rails of car seat as claimed in claim 7, wherein a mounting column is provided at the side of said base, said mounting column extends upwards along said base and above said base, and one end of said adjusting rod is rotatably connected with said mounting column.

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