Precise grinding device for intelligently manufacturing automobile parts

Abstract

The intelligent manufacturing automobile part precise grinding device comprises a grinding table, a vertical clamping table is fixedly connected to the middle of the top end of the grinding table, a transverse circular inner groove is formed in the upper end of the clamping table, and clamping mechanisms are arranged on the two sides of the interior of the circular inner groove; and the centrifugal pump is fixedly connected to the middle of the top end of the clamping table, a collecting box is detachably installed in the middle of the bottom end of the grinding table, and a dust removal mechanism is arranged between the collecting box and the centrifugal pump. Through cooperative use of the spring rod pre-positioning mechanism and the electric push rod clamping mechanism, the effects of automatic centering and stable clamping of a workpiece are achieved, the technical problems of inaccurate positioning and unstable clamping force caused by independent use of a torsion spring for clamping are solved, the grinding discs at the two ends move in the opposite directions, reverse rotation torque is applied, and the grinding efficiency is improved. A three-point positioning stable clamping system is formed, the stability of the workpiece in the high-speed grinding process is improved, and the problem of machining errors caused by positioning deviation in a traditional clamping mode is solved.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts processing, and particularly to a precision grinding device for intelligent manufacturing of automotive parts. Background Art

[0002] When manufacturing automotive parts, most of them are stamping parts formed integrally. After rough machining of the integrally formed stamping of automotive parts, there will be many burrs on the circumference of the automotive parts. In order to meet the use requirements, the burrs need to be ground.

[0003] As disclosed in a precision grinding device for intelligent manufacturing of automotive parts with the authorization announcement number CN113305671A, it includes a bottom plate and a grinding table. The grinding table is fixed to the rear side of the upper end of the bottom plate. A chute is provided on the front side of the upper end of the bottom plate. A slider is arranged at the upper end of the chute. The lower end of the slider extends into the chute and is slidably connected thereto. A screw rod is embedded in the chute. The screw rod penetrates through the front and rear sides of the slider and is threadedly connected thereto. The upper end of the slider is fixedly connected with a top plate. The rear end of the top plate is an open end. Fixed blocks are fixedly connected to both the upper and lower ends of the top plate. After adopting the above technical solution, the beneficial effect of the present invention is that by placing the tubular automotive part between two clamping rings, the clamping rings clamp the part through the outer torsion springs. Then, by rotating the turning handle, the slider drives the part to move backward, and then contacts the rotating abrasive sheet for grinding.

[0004] Although the above patent clamps the tubular automotive part between two clamping rings through the outer torsion springs, in the actual processing process, when the grinding head abuts against the workpiece and rotates at a high speed, due to the action of centrifugal force, the clamping force of the clamping ring on the workpiece will be weakened. In this case, the workpiece may be slightly loose, affecting the grinding accuracy and processing stability. This problem is particularly obvious in the working conditions that require high-precision grinding, and may lead to the processing quality not meeting the expected requirements. Summary of the Invention

[0005] The purpose of the present invention is to provide a precision grinding device for intelligent manufacturing of automotive parts to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A precision grinding device for intelligent manufacturing of automotive parts, comprising

[0008] a grinding table, in the middle of the top end of which a vertical clamping table is fixedly connected. A horizontal circular inner groove is provided at the upper end of the clamping table. Clamping mechanisms are arranged on both sides inside the circular inner groove;

[0009] A centrifugal pump is fixedly connected to the middle of the top of the clamping table. A collection box is detachably installed in the middle of the bottom of the grinding table. A dust removal mechanism is arranged between the collection box and the centrifugal pump;

[0010] A moving table is symmetrically arranged on both sides of the top of the grinding table. A distance adjustment mechanism is arranged between the grinding table and the moving table. Grinding mechanisms are arranged on the opposite sides of the tops of the two moving tables.

[0011] Furthermore, the clamping mechanism includes electric push rods two horizontally fixed to the outer sides of both sides of the clamping table. The output shafts of the electric push rods two penetrate through the circular inner groove and are fixedly connected to clamping blocks. Spring rods are fixedly connected to the upper and lower ends of both sides of the inner wall of the circular inner groove. Clamping heads are movably installed on both sides inside the circular inner groove. Fixed blocks are fixedly connected to the upper and lower ends of the clamping heads. The movable ends of the spring rods are fixedly connected to the fixed blocks. V-shaped grooves are opened on the opposite sides of the two clamping heads.

[0012] Furthermore, the dust removal mechanism includes a top groove opened in the middle of the upper end of the circular inner groove. The bottom end of the centrifugal pump penetrates through the top groove and is located inside the top groove. The other end of the centrifugal pump is connected to the middle of the bottom end of the collection box through a connecting pipe.

[0013] Furthermore, the dust removal mechanism further includes a triangular filter screen fixed to the middle of the inner bottom end of the collection box. Air inlets are opened on both sides of the bottom end of the collection box. Dust-proof nets are fixedly installed on the air inlets. A T-shaped tee pipe is fixedly installed between the middle of the grinding table and the clamping table. The bottom end of the T-shaped tee pipe penetrates through the grinding table and is connected to the bottom-end collection box. Bellows are fixedly installed at both ends of the T-shaped tee pipe penetrating through the outer sides of the bottom ends of the clamping table.

[0014] Furthermore, the dust removal mechanism further includes an outer sealing ring. The outer sealing ring is fixedly connected to the outer wall of the side of the moving table close to the circular inner groove. Inner sealing rings are fixedly connected to the outer sides of both sides of the clamping table close to the circular inner groove. The inner wall of the outer sealing ring is sleeved with the outer wall of the inner sealing ring.

[0015] Furthermore, the distance adjustment mechanism includes mounting seats fixed to both sides of the top of the grinding table. The back of the mounting seat is fixedly connected to a horizontal electric push rod one. The output shaft of the electric push rod one is fixedly connected to the lower outer side of the moving table.

[0016] Furthermore, the grinding mechanism includes an electric push rod three horizontally fixed to the outer side of the moving table. The output shaft of the electric push rod three is fixedly connected to a machine frame. A motor is fixedly installed on the front of the machine frame. The output shaft of the motor is fixedly connected to a grinding disc.

[0017] Furthermore, an air duct communicating with the bellows is opened inside the upper end of the moving table and below the grinding disc.

[0018] Further, guide grooves are provided in the middle of both sides at the top of the grinding table, and sliding blocks slidably connected to the guide grooves are fixedly connected to the middle of the bottom end of the moving table.

[0019] Further, the grinding disc and the circular inner groove are on the same central axis.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. By the combined use of the spring rod pre-positioning mechanism and the electric push rod clamping mechanism, the present invention achieves the effects of automatic centering and stable clamping of workpieces, and solves the technical problems of inaccurate positioning and unstable clamping force caused by the single use of torsion springs for clamping.

[0022] 2. By the combined use of the centrifugal pump spraying and the circulating dust removal system, the present invention achieves the effects of efficiently collecting grinding waste chips and keeping the working environment clean, and solves the technical problems of waste chip scattering and secondary pollution in the traditional dust removal method. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall front view schematic diagram of the present invention;

[0024] Figure 2 is the sectional view schematic diagram of the clamping table of the present invention;

[0025] Figure 3 is the sectional view schematic diagram of the moving table of the present invention;

[0026] Figure 4 is the front view schematic diagram of the chuck of the present invention;

[0027] Figure 5 of the present invention Figure 2 is the enlarged schematic diagram at A in;

[0028] Figure 6 of the present invention Figure 3 is the enlarged schematic diagram at B in;

[0029] Figure 7 of the present invention Figure 3 is the enlarged schematic diagram at C in.

[0030] In the figure: 1, grinding table; 2, clamping table; 3, circular inner groove; 4, centrifugal pump; 5, collection box; 6, moving table; 7, electric push rod II; 8, clamping block; 9, spring rod; 10, chuck; 11, fixed block; 12, V-shaped groove; 13, top groove; 14, connecting pipe; 15, triangular filter screen; 16, air inlet; 17, dust-proof net; 18, T-shaped three-way pipe; 19, bellows; 20, outer sealing ring; 21, inner sealing ring; 22, mounting seat; 23, electric push rod I; 24, electric push rod III; 25, frame; 26, motor; 27, grinding disc; 28, air duct; 29, guide groove; 30, sliding block; 31, cylindrical workpiece. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1-7 shown, the present invention provides a technical solution:

[0033] An intelligent manufacturing precision grinding device for automotive parts includes a grinding table 1, in the middle of the top of which a vertical clamping table 2 is fixedly connected. A horizontal circular inner groove 3 is opened at the upper end of the clamping table 2. Clamping mechanisms are arranged on both sides inside the circular inner groove 3. The clamping mechanisms include electric push rods II 7 horizontally fixed outside both sides of the clamping table 2. The output shafts of the electric push rods II 7 penetrate through the circular inner groove 3 and are fixedly connected with clamping blocks 8. Spring rods 9 are fixedly connected to the upper and lower ends of both inner walls of the circular inner groove 3. Chucks 10 are movably installed on both sides inside the circular inner groove 3. Fixed blocks 11 are fixedly connected to the upper and lower ends of the chucks 10. The movable ends of the spring rods 9 are fixedly connected with the fixed blocks 11. V-shaped grooves 12 are opened on the opposite sides of the two chucks 10. The grinding disc 27 and the circular inner groove 3 are on the same central axis. A moving table 6 is symmetrically arranged on both sides of the top of the grinding table 1. A distance adjustment mechanism is arranged between the grinding table 1 and the moving table 6. The distance adjustment mechanism includes mounting seats 22 fixed on both sides of the top of the grinding table 1. A horizontal electric push rod I 23 is fixedly connected to the back of the mounting seat 22. The output shaft of the electric push rod I 23 is fixedly connected to the lower outside of the moving table 6. Grinding mechanisms are arranged on the opposite sides of the tops of the two moving tables 6. The grinding mechanisms include electric push rods III 24 horizontally fixed outside the moving tables 6. The output shafts of the electric push rods III 24 are fixedly connected with frames 25. A motor 26 is fixedly installed on the front of the frames 25. The output shaft of the motor 26 is fixedly connected with a grinding disc 27. Guide grooves 29 are opened in the middle of both sides of the top of the grinding table 1. Sliding blocks 30 slidably connected with the guide grooves 29 are fixedly connected to the middle of the bottoms of the moving tables 6;

[0034] In this embodiment, by using the spring rod 9 pre-positioning mechanism in cooperation with the electric push rod clamping mechanism, the effects of automatic centering and stable clamping of the workpiece are achieved, and the technical problems of inaccurate positioning and unstable clamping force caused by the sole use of torsion springs for clamping are solved. Specifically, the spring rod 9 pushes the chuck 10 through the fixed block 11 for preliminary centering and positioning, and then the electric push rod drives the clamping block 8 to push the chuck 10 to complete the final clamping. Then, the grinding discs 27 at both ends move towards each other and apply a reverse rotational torque to form a stable clamping system with three-point positioning, improving the stability of the workpiece during high-speed grinding and eliminating the machining error problems caused by positioning deviations in traditional clamping methods.

[0035] As Figure 5 , Figure 6 and Figure 7 shown, the centrifugal pump 4 is fixedly connected to the middle of the top end of the clamping table 2. A collection box 5 is detachably installed in the middle of the bottom end of the grinding table 1. A dust removal mechanism is arranged between the collection box 5 and the centrifugal pump 4. The dust removal mechanism includes a top groove 13 opened in the middle of the upper end of the circular inner groove 3. The bottom end of the centrifugal pump 4 penetrates through the top groove 13 and is located inside the top groove 13. The other end of the centrifugal pump 4 is connected to the middle of the bottom end of the collection box 5 through a connecting pipe 14. The dust removal mechanism further includes a triangular filter screen 15 fixed to the middle of the inner bottom end of the collection box 5. Air inlets 16 are opened on both sides of the bottom end of the collection box 5, and dust-proof nets 17 are fixedly installed on the air inlets 16. A T-shaped tee pipe 18 is fixedly installed between the middle of the grinding table 1 and the clamping table 2. The bottom end of the T-shaped tee pipe 18 penetrates through the grinding table 1 and is connected to the collection box 5 at the bottom end. Bellows 19 are fixedly installed at both ends of the T-shaped tee pipe 18 penetrating through the two sides of the bottom end of the clamping table 2. The dust removal mechanism further includes an outer sealing ring 20, which is fixedly connected to the outer wall of the moving table 6 close to the circular inner groove 3. Inner sealing rings 21 are fixedly connected to the outer sides of both sides of the clamping table 2 close to the circular inner groove 3. The inner wall of the outer sealing ring 20 is sleeved with the outer wall of the inner sealing ring 21. An air duct 28 communicating with the bellows 19 is opened inside the upper end of the moving table 6 and below the grinding disc 27.

[0036] In this embodiment, by using the centrifugal pump 4 for blowing in cooperation with the circulating dust removal system, the effects of efficiently collecting grinding waste chips and keeping the working environment clean are achieved, and the technical problems of waste chip scattering and secondary pollution in traditional dust removal methods are solved. Specifically, the centrifugal pump 4 sprays air flow into the circular inner groove 3 through the top groove 13 to form a positive pressure air flow, driving the grinding waste chips to enter the bellows 19 through the air duct 28, and then guiding them into the collection box 5 through the T-shaped tee pipe 18. At the same time, the triangular filter plate effectively separates the waste chips, and the dust-proof net 17 blocks large particle impurities. Together with the air flow circulation system formed by the connecting pipe 14, the whole-process closed collection of grinding waste chips and air purification are realized, and the dust removal efficiency is effectively improved.

[0037] Working principle: When it is necessary to polish cylindrical automotive parts, first place the workpiece in the circular inner groove 3. The spring rod 9 pushes the chuck 10 through the fixed block 11 to automatically adjust to the center position. Start the second electric push rod 7 to push the clamping block 8 so that the two chucks 10 move synchronously towards the center. The V-shaped groove 12 forms a stable clamping with the outer surface of the workpiece. The moving platforms 6 at both ends move towards each other under the drive of the first electric push rod 23, driving the grinding discs 27 to accurately abut against both ends of the workpiece and implement double-sided clamping. The motors 26 at both ends respectively drive the grinding discs 27 to rotate in opposite directions, forming a balanced rotational torque. During the grinding process, the centrifugal pump 4 is started and air is sprayed into the circular inner groove 3 through the top groove 13. The blowing airflow takes the waste chips generated by grinding into the corrugated pipe 19 from the air duct 28, and then enters the collection box 5 along the T-shaped tee 18. The triangular filter plate in the collection box 5 intercepts and separates the waste chips to prevent the waste chips from re-entering the airflow cycle. At the same time, external air is supplemented through the air inlet 16 and, together with the air entering from the air duct 28, is sucked into the centrifugal pump 4 again through the connecting pipe 14, forming a complete air circulation system. The dynamic sealing cooperation between the outer sealing ring 20 and the inner sealing ring 21 ensures the tightness of the airflow circulation. Through the coordinated action of automatic centering and clamping, double-sided balanced grinding, and cyclic blowing and dust removal, the entire device realizes the high-precision processing of cylindrical workpieces, while ensuring the efficient collection of processing waste chips and the cleanliness of the working environment.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision grinding device for intelligent manufacturing automotive parts, characterized in that: including a grinding table (1) with a vertical clamping table (2) fixedly connected to the middle of its top end. A horizontal circular inner groove (3) is opened at the upper end of the clamping table (2), and clamping mechanisms are arranged on both sides inside the circular inner groove (3); a centrifugal pump (4) fixedly connected to the middle of the top end of the clamping table (2). A collection box (5) is detachably installed in the middle of the bottom end of the grinding table (1), and a dust removal mechanism is arranged between the collection box (5) and the centrifugal pump (4); moving platforms (6) symmetrically arranged on both sides of the top end of the grinding table (1). A distance adjustment mechanism is arranged between the grinding table (1) and the moving platforms (6), and grinding mechanisms are arranged on the opposite sides of the top ends of the two moving platforms (6).

2. The precision grinding device for intelligent manufacturing automotive parts according to claim 1, characterized in that: The clamping mechanism includes electric push rods two (7) horizontally fixed to the outer sides of both sides of the clamping table (2). The output shafts of the electric push rods two (7) penetrate through the circular inner groove (3) and are fixedly connected with clamping blocks (8). Spring rods (9) are fixedly connected to the upper and lower ends of both sides of the inner wall of the circular inner groove (3). Clamping heads (10) are movably installed on both sides inside the circular inner groove (3). Fixed blocks (11) are fixedly connected to the upper and lower ends of the clamping heads (10). The movable ends of the spring rods (9) are fixedly connected with the fixed blocks (11). V-shaped grooves (12) are opened on the opposite sides of the two clamping heads (10).

3. The precision grinding device for intelligent manufacturing automotive parts according to claim 2, characterized in that: The dust removal mechanism includes a top groove (13) opened in the middle of the upper end of the circular inner groove (3). The bottom end of the centrifugal pump (4) penetrates through the top groove (13) and is located inside the top groove (13). The other end of the centrifugal pump (4) is connected to the middle of the bottom end of the collection box (5) through a connecting pipe (14).

4. The precision grinding device for intelligent manufacturing automotive parts according to claim 3, characterized in that: The dust removal mechanism further includes a triangular filter screen (15) fixed to the middle of the inner bottom end of the collection box (5). Air inlets (16) are opened on both sides of the bottom end of the collection box (5), and dust-proof nets (17) are fixedly installed on the air inlets (16). A T-shaped three-way pipe (18) is fixedly installed between the middle of the grinding table (1) and the clamping table (2). The bottom end of the T-shaped three-way pipe (18) penetrates through the grinding table (1) and is connected to the collection box (5) at the bottom end. Bellows (19) are fixedly installed at both ends of the T-shaped three-way pipe (18) penetrating through both sides of the bottom end of the clamping table (2).

5. The precision grinding device for intelligent manufacturing automotive parts according to claim 4, characterized in that: The dust removal mechanism further includes an outer sealing ring (20) fixedly connected to the outer wall of the moving platform (6) close to the circular inner groove (3). Inner sealing rings (21) are fixedly connected to the outer sides of both sides of the clamping table (2) close to the circular inner groove (3). The inner wall of the outer sealing ring (20) is sleeved with the outer wall of the inner sealing ring (21).

6. The precision grinding device for intelligent manufacturing automotive parts according to claim 5, wherein: The distance adjustment mechanism includes mounting seats (22) fixed to both sides of the top end of the grinding table (1). A horizontal electric push rod one (23) is fixedly connected to the back of the mounting seat (22). The output shaft of the electric push rod one (23) is fixedly connected to the lower outer side of the moving platform (6).

7. The precision grinding device for intelligent manufacturing automotive parts according to claim 6, characterized in that: The grinding mechanism includes an electric push rod three (24) horizontally fixed to the outside of the moving table (6). The output shaft of the electric push rod three (24) is fixedly connected to a frame (25). A motor (26) is fixedly installed on the front of the frame (25). The output shaft of the motor (26) is fixedly connected to a grinding disc (27).

8. The precision grinding device for intelligent manufacturing automotive parts according to claim 7, characterized in that: An air duct (28) communicating with the bellows (19) is opened inside the upper end of the moving table (6) and below the grinding disc (27).

9. The precision grinding device for intelligent manufacturing automotive parts according to claim 8, characterized in that: Guide grooves (29) are opened in the middle of both sides of the top end of the grinding table (1). Sliding blocks (30) slidably connected to the guide grooves (29) are fixedly connected to the middle of the bottom end of the moving table (6).

10. The precision grinding device for intelligent manufacturing automotive parts according to claim 8, characterized in that: The grinding disc (27) is on the same central axis as the circular inner groove (3).

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