CN111906662A - Moving gantry type linear guide rail four-side composite forming grinding machine - Google Patents
Moving gantry type linear guide rail four-side composite forming grinding machine Download PDFInfo
- Publication number
- CN111906662A CN111906662A CN202010779960.8A CN202010779960A CN111906662A CN 111906662 A CN111906662 A CN 111906662A CN 202010779960 A CN202010779960 A CN 202010779960A CN 111906662 A CN111906662 A CN 111906662A
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- Prior art keywords
- guide rail
- vertical
- linear guide
- balance
- traverse
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention discloses a movable gantry type linear guide rail four-side composite molding grinding machine which comprises a machine body, a balance gantry frame, a standard linear guide rail pair, a linear driving assembly, a workbench, an electromagnetic chuck, vertical grinding heads and horizontal grinding heads, wherein the two vertical grinding heads are transversely and symmetrically arranged at one longitudinal end of the balance gantry frame; the horizontal grinding head is arranged at the other longitudinal end of the balance portal frame; the balance portal frame is connected to the bed body through a standard linear guide rail pair and is driven by the linear driving assembly to move longitudinally; the two standard guide rail pairs are arranged on the two transverse sides of the top of the lathe bed in parallel and symmetrically; the two linear driving assemblies are arranged on the two transverse sides of the top of the lathe bed in parallel and symmetrically, the electromagnetic chuck is arranged in the middle of the top of the lathe bed, and the electromagnetic chuck is provided with an adsorption mounting plane which is in a stepped shape and is arranged at an upper layer and a lower layer. The grinding efficiency of the grinding machine is higher than that of the traditional three-surface composite forming grinding machine, the investment of one surface grinding machine can be reduced, and the investment cost of equipment is reduced.
Description
Technical Field
The invention belongs to the technical field of grinding machines, and particularly relates to a movable gantry type linear guide rail four-side composite forming grinding machine.
Background
Nowadays, with the popularization of mechanization, linear guide rails and various linear rails in various fields such as machine tool industry, mechanical industry, robots and the like are widely applied, and the cross sections of the guide rails and the rails are various and have severe processing requirements. The prior art is that a grinding wheel is trimmed into a required shape by a trimming wheel and then the grinding wheel is used for grinding the required shape on a workpiece, and if the ground finished product is a linear guide rail, the grinding machine is called a linear guide rail grinding machine.
The high-precision linear guide rail requires that the error of the full-length parallelism of a linear guide rail raceway to the installation bottom surface reference and the installation side surface reference is not more than 0.008 mm, and to achieve the grinding precision, the whole length of the guide rail is generally 4-6 m, and the whole linear guide rail with the length more than 7 m is not seen yet. Aiming at the requirements, the novel high-precision linear guide rail grinding machine in the market at present mainly takes a linear guide rail to be ground, which is installed on a movable workbench and is formed on three surfaces synchronously, as a main part, the linear guide rail grinding machine is provided with two vertical grinding heads and a horizontal grinding head, when the linear guide rail grinding machine works, a plane is ground through a special plane grinding machine firstly and then is installed on the linear guide rail grinding machine, and the two vertical grinding heads grind two side surfaces of the guide rail to be processed respectively. Although the three-surface synchronous forming linear guide rail grinding machine makes great progress in grinding precision compared with the two-surface forming linear guide rail grinding machine, a surface grinding machine is still required to be added to grind a plane, and certain influence is still caused on the problems of production field occupation, production efficiency, equipment investment cost and the like. Particularly, in the linear guide rail grinding machine with the linear guide rail to be ground mounted on the movable workbench, the length of the machine body needs to be more than twice of the length of the workbench, the longer the movable workbench is, the heavier the self weight is, the larger the required driving force is, and the shorter the service life of the supporting guide rail of the workbench is, so that the maximum length of the linear guide rail is greatly limited by the factors.
Disclosure of Invention
The invention aims to solve the problem of providing a high-precision moving gantry type linear guide rail four-surface composite molding grinding machine which can realize the four-surface integrated grinding of a linear guide rail to be processed, has high production efficiency, reduces the equipment investment cost and the production field occupation and can economically grind the whole linear guide rail with the length of more than 8 meters.
In order to solve the technical problem, the invention provides a moving gantry type linear guide rail four-side composite molding grinding machine which comprises a machine body, a balance gantry frame, a standard linear guide rail pair, a linear driving assembly, a workbench, an electromagnetic chuck, a vertical grinding head and a horizontal grinding head, wherein the length direction of the machine body is taken as the longitudinal direction, the width direction of the machine body is taken as the transverse direction, and the direction vertical to the top surface of the machine body is taken as the vertical direction; the two vertical grinding heads are transversely and symmetrically arranged at one longitudinal end of the balance portal frame, and main shafts of the vertical grinding heads are vertically arranged; the horizontal grinding head is arranged at the other longitudinal end of the balance portal frame, and a main shaft of the horizontal grinding head is transversely arranged; the balance portal frame is connected to the bed body through the standard linear guide rail pair and is driven by the linear driving assembly to move longitudinally; the two standard linear guide rail pairs are arranged in parallel and symmetrically on the two transverse sides of the top of the lathe bed; the linear driving assemblies are arranged in two, the two linear driving assemblies are arranged on the two transverse sides of the top of the lathe bed in parallel and symmetrically, the workbench is arranged in the middle of the top of the lathe bed, the electromagnetic chuck is arranged above the workbench, and the electromagnetic chuck is provided with an adsorption mounting plane which is in a stepped upper layer and a stepped lower layer.
As a preferable aspect of the present invention, the linear driving assembly is a linear motor.
As a preferable scheme of the invention, the balance portal frame is a box-shaped frame which is symmetrical on the front, the back, the left and the right.
As a preferable scheme of the invention, the vertical grinding head and the horizontal grinding head are both arranged on the inner side of the box-shaped frame.
As a preferable scheme of the invention, the standard linear guide rail pair comprises a guide rail and a plurality of slide blocks, the guide rail is fixed on the bed body and is longitudinally arranged, and the plurality of slide blocks are fixed at the bottom of the balance portal frame and are in sliding connection with the guide rail.
In a preferred embodiment of the present invention, the bed body has a three-box-shaped bed structure including 4 vertical panels and a plurality of horizontal ribs.
As a preferable scheme of the invention, the vertical grinding head is arranged on the balance portal frame through a first transverse and vertical bidirectional moving mechanism.
As a preferable scheme of the invention, the first transverse and vertical bidirectional movement mechanism comprises a first transverse movement seat, a first transverse guide rail pair, a first transverse driving assembly, a first vertical movement seat, a first vertical guide rail pair and a first vertical driving assembly, the first transverse movement seat is connected to the balance portal frame through the first transverse guide rail pair and is driven by the first transverse driving assembly to move transversely, the first vertical movement seat is connected to the first transverse movement seat through the first vertical guide rail pair and is driven by the first vertical driving assembly to move vertically, and the vertical grinding head is fixed on the first vertical movement seat.
As a preferable scheme of the invention, the horizontal grinding head is installed on the balance portal frame through a second transverse and vertical bidirectional moving mechanism.
As a preferable scheme of the invention, the second transverse and vertical bidirectional movement mechanism comprises a second transverse movement seat, a second transverse guide rail pair, a second transverse driving assembly, a second vertical movement seat, a second vertical guide rail pair and a second vertical driving assembly, the second transverse movement seat is connected to the balance portal frame through the second transverse guide rail pair and is driven by the second transverse driving assembly to move transversely, the second vertical movement seat is connected to the second transverse movement seat through the second vertical guide rail pair and is driven by the second vertical driving assembly to move vertically, and the horizontal grinding head is fixed on the second vertical movement seat.
Compared with the prior art, the movable gantry type linear guide rail four-side composite molding grinding machine provided by the invention has the following beneficial effects:
according to the invention, 2 guide rails to be processed can be respectively arranged on the adsorption mounting planes of the upper layer and the lower layer at one time through the arrangement of the stepped electromagnetic chuck, and the mounting directions of the two guide rails are opposite; during grinding, the 2 vertical grinding heads can simultaneously grind the two side raceways and the two side planes of the upper guide rail to be machined, the horizontal grinding heads can respectively grind the upper surfaces of the upper and lower guide rails to be machined, and the grinding allowance of the vertical grinding heads is about 3 times of that of the horizontal grinding heads, so that the horizontal grinding heads can finish grinding the upper surfaces of the two guide rails to be machined within the grinding time range of the two vertical grinding heads. Therefore, the grinding efficiency of the movable gantry type linear guide rail four-side composite forming grinding machine is higher than that of the traditional three-side composite forming grinding machine, the investment of one surface grinding machine can be reduced, the investment cost of equipment is reduced, and the floor occupation cost of the equipment is reduced; meanwhile, a movable gantry type linear guide rail four-side composite molding grinding machine is adopted, so that a linear guide rail grinding machine for grinding a longer guide rail, in particular a high-precision linear guide rail grinding machine with the length of more than 8 meters, can be economically produced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a perspective view of a movable gantry type linear guide track four-side compound molding grinding machine provided by the invention;
FIG. 2 is a side view of a movable gantry type linear guide track four-side compound molding grinding machine provided by the invention;
FIG. 3 is a top view of a movable gantry type linear guide four-side compound molding grinding machine provided by the invention;
the figure shows that the grinding machine comprises a machine body, a balance portal frame, a standard linear guide rail pair, a linear driving assembly, a workbench, a magnetic chuck, a vertical grinding head, a first transverse moving seat, a second transverse moving seat, a third transverse guide rail pair, a fourth transverse driving assembly, a fifth transverse driving assembly, a sixth vertical moving seat, a fifth vertical driving assembly, a sixth vertical grinding head, a 81, a fourth transverse moving seat, a sixth transverse guide rail pair, a sixth transverse driving assembly, a sixth vertical driving assembly, a fifth vertical driving assembly, a sixth vertical.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, in a preferred embodiment of the present invention, a moving gantry type linear guide four-side composite molding grinding machine includes a machine body 1, a balance gantry 2, a standard linear guide pair 3, a linear driving assembly 4, a worktable 5, an electromagnetic chuck 6, a vertical grinding head 7 and a horizontal grinding head 8, wherein a length direction of the machine body 1 is a longitudinal direction, a width direction of the machine body 1 is a transverse direction, and a direction perpendicular to a top surface of the machine body 1 is a vertical direction; the two vertical grinding heads 7 are arranged, the two vertical grinding heads 7 are transversely and symmetrically arranged at one longitudinal end of the balance portal frame 2, and main shafts of the vertical grinding heads 7 are vertically arranged; the horizontal grinding head 8 is arranged at the other longitudinal end of the balance portal frame 2, and a main shaft of the horizontal grinding head 8 is transversely arranged; the balance portal frame 2 is connected to the lathe bed 1 through the standard linear guide rail pair 3 and is driven by the linear driving assembly 4 to move longitudinally; the two standard linear guide rail pairs 3 are arranged in parallel and symmetrically on the two transverse sides of the top of the lathe body 1; the two linear driving assemblies 4 are arranged, the two linear driving assemblies 4 are arranged on the two transverse sides of the top of the lathe bed 1 in parallel and symmetrically, the workbench 5 is arranged in the middle of the top of the lathe bed 1, the electromagnetic chuck 6 is arranged above the workbench 5, and the electromagnetic chuck 6 is provided with an adsorption mounting plane which is in a stepped upper layer and a stepped lower layer.
According to the movable gantry type linear guide rail four-side composite molding grinding machine provided by the embodiment of the invention, 2 guide rails to be processed can be respectively arranged on the adsorption mounting planes of the upper layer and the lower layer at one time through the arrangement of the stepped electromagnetic chuck 6, and the mounting directions of the two guide rails are opposite; during grinding, the 2 vertical grinding heads 7 can simultaneously grind the two side raceways and the two side planes of the upper guide rail to be machined, the horizontal grinding head 8 can respectively grind the upper surfaces of the upper and lower guide rails to be machined, and the grinding allowance of the vertical grinding head 7 is about 3 times of that of the horizontal grinding head 8, so that the horizontal grinding head 8 can finish grinding the upper surfaces of the two guide rails to be machined within the grinding time range of the two vertical grinding heads 7. Therefore, the grinding efficiency of the movable gantry type linear guide rail four-side composite forming grinding machine is higher than that of the traditional three-side composite forming grinding machine, the investment of one surface grinding machine can be reduced, the investment cost of equipment is reduced, and the floor occupation cost of the equipment is reduced; meanwhile, a movable gantry type linear guide rail four-side composite molding grinding machine is adopted, so that a linear guide rail grinding machine for grinding a longer guide rail, in particular a high-precision linear guide rail grinding machine with the length of more than 8 meters, can be economically produced.
Illustratively, the linear drive assembly 4 is a linear motor. Therefore, through a dual-drive structure formed by the left linear motor and the right linear motor, each linear motor can support the balance portal frame 2 together with the standard linear guide rail pair 3 while generating thrust to the balance portal frame 2, so that the stress of the left standard linear guide rail pair 3 and the stress of the right standard linear guide rail pair 3 are reduced, and the service life of the standard linear guide rail pair 3 is greatly prolonged.
Illustratively, the balance portal frame 2 is a box-shaped frame which is symmetrical on the front, the back, the left and the right. The design can reduce the eccentric inertia of the grinding head when the balance portal frame 2 bears a load (the weight of the grinding head) and moves at a high speed, and the operation precision and the stability of the equipment are improved. Further, the vertical grinding head 7 and the horizontal grinding head 8 are both arranged on the inner side of the box-type frame, so that the center of gravity of the integral structure formed by the vertical grinding head 7, the horizontal grinding head 8 and the balance portal frame 2 is concentrated in the middle of the box-type frame.
Illustratively, the standard linear guide rail pair 3 comprises a guide rail 31 and a plurality of sliders 32, the guide rail 31 is fixed on the bed 1 and is longitudinally arranged, and the plurality of sliders 32 are fixed at the bottom of the balance gantry 2 and are slidably connected with the guide rail 31. By adopting the design, the upper load can be uniformly dispersed on each sliding block 32, the effect of load averaging is realized, and a guide system with high motion precision is favorably formed.
Illustratively, the lathe bed 1 is a three-box type lathe bed 1 structure consisting of 4 vertical face plates and a plurality of cross face ribbed plates, and has good bending resistance and torsion resistance. In this embodiment, the cross section of the bed body 1 is in a shape of a squared figure.
Illustratively, the vertical grinding head 7 is mounted on the balance portal frame 2 through a first transverse and vertical bidirectional moving mechanism. Specifically, the first transverse and vertical bidirectional movement mechanism includes a first transverse movement seat 71, a first transverse guide rail pair 72, a first transverse driving assembly 73, a first vertical movement seat 74, a first vertical guide rail pair 75 and a first vertical driving assembly 76, the first transverse movement seat 71 is connected to the balance portal frame 2 through the first transverse guide rail pair 72, and is driven by the first transverse driving assembly 73 to move transversely, the first vertical movement seat 74 is connected to the first transverse movement seat 71 through the first vertical guide rail pair 75, and is driven by the first vertical driving assembly 76 to move vertically, and the vertical grinding head 7 is fixed to the first vertical movement seat 74. Wherein, the first transverse driving assembly 73 and the first vertical driving assembly 76 can be a driving structure which converts the rotation motion into the linear motion, such as: a driving structure composed of a motor and a ball screw nut pair, or a driving structure composed of a motor, a gear and a rack, etc.; of course, the linear driving structure may be an electric push rod, an air cylinder, a hydraulic cylinder, a linear motor, or the like. It should be noted that, in order to improve the feeding accuracy of the grinding head, the first transverse driving assembly 73 and the first vertical driving assembly 76 are preferably driven by linear motors or servo motors.
Illustratively, the horizontal grinding head 8 is mounted on the balance portal frame 2 through a second transverse and vertical bidirectional moving mechanism. Specifically, the second transverse and vertical bidirectional movement mechanism includes a second transverse movement seat 81, a second transverse guide rail pair 82, a second transverse driving assembly 83, a second vertical movement seat 84, a second vertical guide rail pair 85 and a second vertical driving assembly 86, the second transverse movement seat 81 is connected to the balance portal frame 2 through the second transverse guide rail pair 82 and is driven by the second transverse driving assembly 83 to move transversely, the second vertical movement seat 84 is connected to the second transverse movement seat 81 through the second vertical guide rail pair 85 and is driven by the second vertical driving assembly 86 to move vertically, and the horizontal grinding head 8 is fixed to the second vertical movement seat 84. Wherein, the second transverse driving assembly 83 and the second vertical driving assembly 86 can be a driving structure which converts the rotation motion into the linear motion, such as: a driving structure composed of a motor and a ball screw nut pair, or a driving structure composed of a motor, a gear and a rack, etc.; of course, the linear driving structure may be an electric push rod, an air cylinder, a hydraulic cylinder, or the like. It should be noted that, in order to improve the feeding accuracy of the grinding head, the second transverse driving assembly 83 and the second vertical driving assembly 86 are preferably driven by a stepping motor or a servo motor.
The vertical grinding head 7 and the horizontal grinding head 8 are in the prior art and are not described in detail.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A movable gantry type linear guide rail four-side composite molding grinding machine is characterized by comprising a machine body, a balance gantry, a standard linear guide rail pair, a linear driving assembly, a workbench, an electromagnetic chuck, a vertical grinding head and a horizontal grinding head, wherein the length direction of the machine body is longitudinal, the width direction of the machine body is transverse, and the direction vertical to the top surface of the machine body is vertical; the two vertical grinding heads are transversely and symmetrically arranged at one longitudinal end of the balance portal frame, and main shafts of the vertical grinding heads are vertically arranged; the horizontal grinding head is arranged at the other longitudinal end of the balance portal frame, and a main shaft of the horizontal grinding head is transversely arranged; the balance portal frame is connected to the bed body through the standard linear guide rail pair and is driven by the linear driving assembly to move longitudinally; the two standard linear guide rail pairs are arranged in parallel and symmetrically on the two transverse sides of the top of the lathe bed; the linear driving assemblies are arranged in two, the two linear driving assemblies are arranged on the two transverse sides of the top of the lathe bed in parallel and symmetrically, the workbench is arranged in the middle of the top of the lathe bed, the electromagnetic chuck is arranged above the workbench, and the electromagnetic chuck is provided with an adsorption mounting plane which is in a stepped upper layer and a stepped lower layer.
2. The moving gantry type linear guide four-side compound molding grinding machine according to claim 1, wherein the linear driving assembly is a linear motor.
3. The four-side compound molding grinding machine of the moving gantry type linear guide rail as claimed in claim 1, wherein the balance gantry is a box-shaped frame which is symmetrical in four sides, front, back, left and right.
4. The four-side compound molding grinding machine with the movable gantry type linear guide rail as claimed in claim 3, wherein the vertical grinding head and the horizontal grinding head are both arranged on the inner side of the box-shaped frame.
5. The four-side compound molding grinding machine of the moving gantry type linear guide rail as claimed in claim 1, wherein the standard linear guide rail pair comprises a guide rail and a plurality of slide blocks, the guide rail is fixed on the lathe bed and is arranged along the longitudinal direction, and the plurality of slide blocks are fixed at the bottom of the balance gantry and are connected with the guide rail in a sliding manner.
6. The moving gantry type linear guide four-side compound molding grinding machine as claimed in claim 1, wherein the bed body is a three-box type bed body structure composed of 4 vertical panels and a plurality of transverse rib plates.
7. The four-side compound molding grinding machine with the movable gantry type linear guide rail as claimed in claim 1, wherein the vertical grinding head is mounted on the balance gantry through a first transverse and vertical bidirectional moving mechanism.
8. The four-side compound molding grinding machine with movable gantry type linear guide rails as claimed in claim 7, wherein the first traverse and vertical bidirectional moving mechanism comprises a first traverse moving seat, a first traverse guide rail pair, a first traverse driving component, a first vertical moving seat, a first vertical guide rail pair and a first vertical driving component, the first traverse moving seat is connected to the balance gantry frame through the first traverse guide rail pair and is driven by the first traverse driving component to move transversely, the first vertical moving seat is connected to the first traverse moving seat through the first vertical guide rail pair and is driven by the first vertical driving component to move vertically, and the vertical grinding head is fixed on the first vertical moving seat.
9. The four-side compound molding grinding machine with the movable gantry type linear guide rail as claimed in claim 1, wherein the horizontal grinding head is mounted on the balance gantry through a second transverse and vertical bidirectional moving mechanism.
10. The four-side compound molding grinding machine with movable gantry type linear guide rails as claimed in claim 9, wherein the second traverse and vertical bidirectional moving mechanism comprises a second traverse moving seat, a second traverse guide rail pair, a second traverse driving component, a second vertical moving seat, a second vertical guide rail pair and a second vertical driving component, the second traverse moving seat is connected to the balance gantry frame through the second traverse guide rail pair and is driven by the second traverse driving component to move transversely, the second vertical moving seat is connected to the second traverse moving seat through the second vertical guide rail pair and is driven by the second vertical driving component to move vertically, and the horizontal grinding head is fixed on the second vertical moving seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779960.8A CN111906662A (en) | 2020-08-05 | 2020-08-05 | Moving gantry type linear guide rail four-side composite forming grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779960.8A CN111906662A (en) | 2020-08-05 | 2020-08-05 | Moving gantry type linear guide rail four-side composite forming grinding machine |
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| Publication Number | Publication Date |
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| CN111906662A true CN111906662A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010779960.8A Pending CN111906662A (en) | 2020-08-05 | 2020-08-05 | Moving gantry type linear guide rail four-side composite forming grinding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873043A (en) * | 2021-03-25 | 2021-06-01 | 江门银特银数控机床有限公司 | Linear guide grinding machine and balance box type double-acting portal frame for same |
-
2020
- 2020-08-05 CN CN202010779960.8A patent/CN111906662A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873043A (en) * | 2021-03-25 | 2021-06-01 | 江门银特银数控机床有限公司 | Linear guide grinding machine and balance box type double-acting portal frame for same |
| CN112873043B (en) * | 2021-03-25 | 2022-08-12 | 江门银特银数控机床有限公司 | Linear guide grinding machine and balance box type double-acting portal frame for same |
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