A linear guide four-side compound grinding machine and a flow-type grinding method thereof

Abstract

The present invention relates to the technical field of grinding machines, and discloses a linear guide four-sided compound grinding machine, comprising a bed, a grinding machine worktable is arranged on the top of the bed, the grinding machine worktable is connected to the bed in a transverse sliding manner through a plurality of guide rail pairs, a first base and a second base are arranged transversely and parallel to each other on the grinding machine worktable, the top surface of the first base is higher than the top surface of the second base, a horizontal grinding head and two vertical grinding heads are arranged above the bed, the horizontal grinding head can move longitudinally and vertically respectively, the vertical grinding head can move longitudinally and vertically respectively, the distance between the vertical center axis of the vertical grinding head and the longitudinal plane where the vertical center axis of the horizontal grinding head is located is the grinding distance, and the grinding distance is 315mm to 500mm. The present invention can improve the walking accuracy of the linear guide during grinding, and the present invention also provides a flow-type grinding method of the linear guide four-sided compound grinding machine, which effectively improves production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of grinding machines, in particular to a linear guide rail four-side compound grinding machine and a flow-type grinding method thereof. Background Art

[0002] Nowadays, with the popularization of mechanization, linear guides and various linear tracks have been widely used in various fields such as machine tool industry, machinery industry, robots, etc. The cross-sections of guides and tracks are various, and the processing requirements are very strict. The current technology is to use a dressing wheel to repair the grinding wheel into the required shape and then use the grinding wheel to grind the required shape on the workpiece. If the finished product is a linear guide, it is called a linear guide grinder. Linear guide grinders are generally equipped with a horizontal grinding head and two vertical grinding heads. The horizontal grinding head grinds the top or bottom surface of the linear guide, and the two vertical grinding heads grind the two sides of the linear guide respectively. The existing linear guide grinders give priority to the installation space problem during installation. In order to avoid interference between the vertical grinding head and the horizontal grinding head, the vertical grinding head and the horizontal grinding head are separated far apart. However, this practice will affect the walking accuracy of the linear guide during grinding. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a linear guide four-side compound grinding machine which can improve the travel accuracy of the linear guide during grinding.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a linear guide four-sided compound grinder, including a bed, the length direction of the bed is horizontal, the width direction of the bed is longitudinal, the height direction of the bed is vertical, a grinder worktable is provided on the top of the bed, the grinder worktable is connected to the bed in a horizontal sliding manner through a plurality of guide rail pairs, a first base and a second base which are arranged horizontally and parallel to each other are provided on the grinder worktable, the top surface of the first base is higher than the top surface of the second base, a horizontal grinding head and two vertical grinding heads are provided above the bed, the horizontal grinding head can move in the longitudinal and vertical directions respectively, the vertical grinding head can move in the longitudinal and vertical directions respectively, the distance between the vertical center axis of the vertical grinding head and the longitudinal plane where the vertical center axis of the horizontal grinding head is located is the grinding distance, and the grinding distance is 315mm~500mm.

[0005] As a preferred solution of the present invention, the horizontal grinding head can move in the lateral, longitudinal and vertical directions respectively.

[0006] As a preferred embodiment of the present invention, it also includes a first gantry and a second gantry respectively cooperating with the bed, a horizontal grinding unit is provided on the side of the first gantry close to the second gantry, the horizontal grinding unit includes a first longitudinal slide connected to the first gantry for longitudinal sliding, a first vertical slide connected to the first longitudinal slide for vertical sliding, and a first transverse slide connected to the first vertical slide for transverse sliding, the horizontal grinding head is fixedly connected to the first transverse slide, two vertical grinding units are provided on the side of the second gantry close to the first gantry, the vertical grinding unit includes a second longitudinal slide connected to the second gantry for longitudinal sliding, and a second vertical slide connected to the second longitudinal slide for vertical sliding, and the vertical grinding head is fixedly connected to the second vertical slide.

[0007] As a preferred solution of the present invention, the first gantry and the second gantry are fixedly connected to form a box-type structure.

[0008] As a preferred solution of the present invention, the width of the bed between the first gantry and the second gantry is greater than the width of the bed outside the first gantry and the second gantry.

[0009] As a preferred solution of the present invention, the grinding distance is greater than the radius of the vertical grinding head and the radius of the horizontal grinding head.

[0010] As a preferred embodiment of the present invention, it also includes a first gantry and a second gantry respectively cooperating with the bed, a horizontal grinding unit is provided on the side of the first gantry close to the second gantry, the horizontal grinding unit includes a first longitudinal slide connected to the first gantry for longitudinal sliding and a first vertical slide connected to the first longitudinal slide for vertical sliding, the horizontal grinding head is fixedly connected to the first vertical slide, two vertical grinding units are provided on the side of the second gantry close to the first gantry, the vertical grinding unit includes a second longitudinal slide connected to the second gantry for longitudinal sliding and a second vertical slide connected to the second longitudinal slide for vertical sliding, the vertical grinding head is fixedly connected to the second vertical slide.

[0011] As a preferred solution of the present invention, the first gantry and the second gantry are fixedly connected to form a box-type structure.

[0012] As a preferred solution of the present invention, the width of the bed between the first gantry and the second gantry is greater than the width of the bed outside the first gantry and the second gantry.

[0013] At the same time, the present invention also provides a flow-type grinding method of a linear guide rail four-side compound grinding machine, comprising the following steps:

[0014] Step 1: taking a workpiece and placing it on the first base or the second base, and the horizontal grinding head grinds the top surface of the workpiece;

[0015] Step 2: Invert the workpiece whose top surface has been ground in step 1 onto the first base, and place another workpiece onto the second base; the time required for grinding the top or bottom surface of the workpiece is t1, and the time required for grinding both sides of the workpiece is t2, where t2≥2t1;

[0016] Step 3: the horizontal grinding head grinds the bottom surface of the workpiece on the first base, and the two vertical grinding heads grind the two sides of the workpiece on the first base respectively;

[0017] Step 4: After the bottom surface of the workpiece on the first base is ground, the horizontal grinding head moves to the top of the workpiece on the second base to grind the top surface of the workpiece on the second base, and the two vertical grinding heads continue to grind both sides of the workpiece on the first base;

[0018] Step 5: When both sides of the workpiece on the first base are ground and the top surface of the workpiece on the second base is ground, the workpiece on the first base is removed, and then the workpiece on the second base is inverted on the first base, and then a new workpiece to be processed is placed on the second base;

[0019] Step 6: Repeat steps 3 to 5 to achieve continuous grinding.

[0020] The embodiment of the present invention provides a linear guide rail four-side compound grinding machine and a flow-type grinding method thereof, which has the following beneficial effects compared with the prior art: BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural diagram of Embodiment 1 of the present invention;

[0022] Figure 2 yes Figure 1 The main view;

[0023] Figure 3 yes Figure 1 A top view of

[0024] Figure 4 yes Figure 1 The structural diagram of the horizontal grinding unit in;

[0025] Figure 5 yes Figure 1 The structural diagram of the vertical mill unit in;

[0026] In the figure, 1, bed; 2, grinding machine worktable; 21, first base; 22, second base; 3, horizontal grinding head; 4, vertical grinding head; 5, first gantry; 51, horizontal grinding unit; 511, first longitudinal slide; 512, first vertical slide; 513, first transverse slide; 6, second gantry; 61, vertical grinding unit; 611, second longitudinal slide; 612, second vertical slide. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the present invention adopts the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In the present invention, the horizontal direction can be regarded as the X-axis direction, the vertical direction can be regarded as the Y-axis direction, the vertical direction can be regarded as the Z-axis direction, and the longitudinal plane is the YZ plane.

[0029] like Figure 1 -5 is shown in Example 1 of the present invention.

[0030] A linear guide four-sided compound grinding machine comprises a bed 1, wherein the length direction of the bed 1 is horizontal, the width direction of the bed 1 is longitudinal, and the height direction of the bed 1 is vertical. A grinding machine worktable 2 is provided on the top of the bed 1, and the grinding machine worktable 2 is connected to the bed 1 in a horizontal sliding manner through a plurality of guide rail pairs. A first base 21 and a second base 22 which are arranged horizontally and parallel to each other are provided on the grinding machine worktable 2, and the top surface of the first base 21 is higher than the top surface of the second base 22. A horizontal grinding head 3 and two vertical grinding heads 4 are provided above the bed 1, and the horizontal grinding head 3 can move longitudinally and vertically respectively, and the vertical grinding head 4 can move longitudinally and vertically respectively, and the distance between the vertical center axis of the vertical grinding head 4 and the longitudinal plane where the vertical center axis of the horizontal grinding head 3 is located is the grinding distance, and the grinding distance is 315 mm to 500 mm.

[0031] The working principle of this embodiment is as follows: when the horizontal grinding head 3 and the vertical grinding head 4 are grinding the same workpiece (linear guide) at the same time, the lateral positions of the horizontal grinding head 3 and the vertical grinding head 4 remain unchanged, that is, the grinding distance L1 remains unchanged. Since the grinding table 2 drives the workpiece to move horizontally, when the grinding table 2 moves the grinding distance L1, it drives a certain point on the workpiece to pass through the longitudinal plane where the vertical center axis of the horizontal grinding head 3 and the longitudinal plane where the vertical midline axis of the vertical grinding head 4 are located in sequence. At this time, the grinding of the moving section of the workpiece is completed. Assuming that the walking accuracy (walking parallelism) of the grinding table 2 in this distance is H1, the walking accuracy of the moving section of the workpiece during grinding is H1. Any point on the workpiece needs to be driven by the grinder table 2 to move the grinding distance L1 to complete the grinding. Therefore, the walking accuracy of the grinder table 2 at any grinding distance L1 is approximately equal to (ignoring the slight position change of the grinding head itself) the walking accuracy of the workpiece during grinding. Since the grinder table 2 moves through multiple guide pairs, its walking accuracy is determined by the walking accuracy of the guide pairs. The larger the stroke value of the guide pair, the worse its walking accuracy (the larger the walking parallelism value). Therefore, by shortening the grinding distance, the walking accuracy of the workpiece during grinding can be effectively improved. According to the principle of uniform error distribution, the walking accuracy of the grinder table 2 is approximately 1 / 3 of the walking accuracy of a single guide pair.

[0032] Illustrate: Example 1: The grinding machine worktable 2 achieves lateral movement through multiple densely installed precision guide pairs, and the grinding distance is 315mm. According to Table 1 (Mechanical Industry Standard of the People's Republic of China), the travel parallelism of the precision guide pair in a 315mm stroke is 3μm. Under the principle of error averaging, the travel parallelism of the grinding machine worktable 2 is approximately 1 / 3 of the travel parallelism of a single guide pair, that is, the travel parallelism of the grinding machine worktable 2 is approximately 1μm. Therefore, the travel parallelism of the workpiece during grinding is 1μm, and in the future, it can meet the ultra-precision level of use requirements within the range below 315mm stroke.

[0033] Example 2: The grinding table 2 realizes lateral movement through multiple densely installed precision guide pairs, and the grinding distance is 500mm. As shown in Table 1, the travel parallelism of the precision guide pair in a 500mm travel is 4.5μm. Under the principle of error averaging, the travel parallelism of the grinding table 2 is about 1 / 3 of the travel parallelism of a single guide pair, that is, the travel parallelism of the grinding table 2 is about 1.5μm. Therefore, the travel parallelism of the workpiece during grinding is 1.5μm, which can meet the ultra-precision level of use requirements within the range of 315mm travel in the future.

[0034] Example 3: The grinding machine table 2 realizes lateral movement through multiple densely installed precision guide pairs, and the grinding distance is 800mm. As shown in Table 1, the travel parallelism of the precision guide pair in the 800mm travel is 6μm. Under the principle of error averaging, the travel parallelism of the grinding machine table 2 is about 1 / 3 of the travel parallelism of a single guide pair, that is, the travel parallelism of the grinding machine table 2 is about 2μm. Therefore, the travel parallelism of the workpiece during grinding is 2μm, which cannot meet the ultra-precision level use requirements within the range of 315mm travel in the future.

[0035]

[0036] Table 1

[0037] Exemplarily, the horizontal grinding head 3 can move in the horizontal, longitudinal and vertical directions respectively, that is, the horizontal grinding head 3 can move horizontally, so as to adjust the relative position of the horizontal grinding head 3 and the vertical grinding head 4. On the one hand, the grinding distance can be adjusted according to actual conditions. On the other hand, when the horizontal grinding head 3 needs to move from the top of one base to the top of another base, the horizontal grinding head 3 first moves horizontally away from the vertical grinding head 4 to avoid interference and collision with the vertical grinding head 4 when the horizontal grinding head 3 moves longitudinally.

[0038] Exemplarily, this embodiment also includes a first gantry 5 and a second gantry 6 respectively matched with the bed 1, a horizontal grinding unit 51 is provided on the side of the first gantry 5 close to the second gantry 6, the horizontal grinding unit 51 includes a first longitudinal slide 511 connected to the first gantry 5 for longitudinal sliding, a first vertical slide 512 connected to the first longitudinal slide 511 for vertical sliding, and a first horizontal slide 513 connected to the first vertical slide 512 for horizontal sliding, the horizontal grinding head 3 is fixedly connected to the first horizontal slide 513, so as to realize the horizontal, longitudinal and vertical movement of the horizontal grinding head 3, and the second gantry 6 Two vertical grinding units 61 are provided on the side close to the first gantry 5 to reduce the lateral distance between the vertical grinding heads 4 and the vertical grinding heads 4, which is helpful to shorten the grinding distance. The vertical grinding unit 61 includes a second longitudinal slide 611 longitudinally slidably connected to the second gantry 6 and a second vertical slide 612 vertically slidably connected to the second longitudinal slide 611. The vertical grinding head 4 is fixedly connected to the second vertical slide 612 to realize the longitudinal and vertical movement of the vertical grinding head 4. The first gantry 5 and the second gantry 6 are respectively U-shaped, with a stable structure to prevent the horizontal grinding head 3 and the vertical grinding head 4 from offset when fixed.

[0039] Exemplarily, the first gantry 5 and the second gantry 6 are fixedly connected to form a box-type structure, which improves the stability of the relative position relationship between the vertical grinding head 4 and the horizontal grinding head 3, reduces the position deviation of the same cross-section of the workpiece passing through the vertical and horizontal grinding heads 3, and improves the walking accuracy of the workpiece during grinding.

[0040] For example, the width of the bed 1 between the first gantry 5 and the second gantry 6 is greater than the width of the bed 1 outside the first gantry 5 and the second gantry 6. The local bending resistance is enhanced and the horizontal stability of the area is strictly controlled, thereby restricting the radial displacement of any cross section of the workpiece being ground when passing through the vertical grinding head 4 and the horizontal grinding head 3, and improving the walking accuracy of the workpiece during grinding.

[0041] Embodiment 2 of the present invention.

[0042] In this embodiment, the grinding distance is greater than the radius of the vertical grinding head 4 and the radius of the horizontal grinding head 3, which effectively avoids interference and collision between the horizontal grinding head 3 and the vertical grinding head 4 when the horizontal grinding head 3 moves longitudinally. Considering the utilization of the grinding wheel, the radius of the vertical grinding head 4 and the horizontal grinding head 3 is generally 300 mm, so the grinding distance of 315 mm is greater than the radius of the vertical grinding head and the horizontal grinding head 3, respectively.

[0043] Exemplarily, this embodiment also includes a first gantry 5 and a second gantry 6 respectively matched with the bed 1, and a horizontal grinding unit 51 is provided on the side of the first gantry 5 close to the second gantry 6, and the horizontal grinding unit 51 includes a first longitudinal slide 511 longitudinally slidably connected to the first gantry 5 and a first vertical slide 512 vertically slidably connected to the first longitudinal slide 511, and the horizontal grinding head 3 is fixedly connected to the first vertical slide 512 to realize the vertical and longitudinal movement of the horizontal grinding head 3, and two vertical grinding units 61 are provided on the side of the second gantry 6 close to the first gantry 5, and the vertical grinding unit 61 includes a second longitudinal slide 611 longitudinally slidably connected to the second gantry 6 and a second vertical slide 612 vertically slidably connected to the second longitudinal slide 611, and the vertical grinding head 4 is fixedly connected to the second vertical slide 612 to realize the longitudinal and longitudinal movement of the vertical grinding head 4.

[0044] Exemplarily, the first gantry 5 and the second gantry 6 are fixedly connected to form a box-shaped structure. The stability of the relative position relationship between the vertical grinding head 4 and the horizontal grinding head 3 is improved, and the position deviation of the same cross section of the workpiece passing through the vertical and horizontal grinding heads 3 is reduced, so as to improve the walking accuracy of the workpiece during grinding.

[0045] For example, the width of the bed 1 between the first gantry 5 and the second gantry 6 is greater than the width of the bed 1 outside the first gantry 5 and the second gantry 6. The local bending resistance is enhanced and the horizontal stability of the area is strictly controlled, thereby restricting the radial displacement of any cross section of the workpiece being ground when passing through the vertical grinding head 4 and the horizontal grinding head 3, and improving the walking accuracy of the workpiece during grinding.

[0046] At the same time, the present invention also provides a flow-type grinding method of a linear guide rail four-side compound grinding machine, comprising the following steps:

[0047] Step 1: Place a workpiece on the first base 21 or the second base 22, and grind the top surface of the workpiece with the horizontal grinding head 3;

[0048] Step 2: Place the workpiece whose top surface has been ground in step 1 upside down on the first base 21, and place another workpiece on the second base 22; the time required for grinding the top or bottom surface of the workpiece is t1, and the time required for grinding both sides of the workpiece is t2, where t2≥2t1;

[0049] Step 3: The horizontal grinding head 3 grinds the bottom surface of the workpiece on the first base 21, and the two vertical grinding heads 4 grind the two sides of the workpiece on the first base 21 respectively;

[0050] Step 4: After the bottom surface of the workpiece on the first base 21 is ground, the horizontal grinding head 3 moves to the top of the workpiece on the second base 22 to grind the top surface of the workpiece on the second base 22, and the two vertical grinding heads 4 continue to grind both sides of the workpiece on the first base 21;

[0051] Step 5: When both sides of the workpiece on the first base 21 are ground and the top surface of the workpiece on the second base 22 is ground, the workpiece on the first base 21 is removed, and then the workpiece on the second base 22 is inverted on the first base 21, and then a new workpiece to be processed is placed on the second base 22;

[0052] Step 6: Repeat steps 3 to 5 to achieve continuous grinding.

[0053] The principle of the flow-type grinding method is as follows: first grind the top surface of a workpiece, then invert the workpiece on the first base 21, take another workpiece and place it on the second base 22, and grind the bottom surface and two side surfaces of the workpiece on the first base 21 at the same time. Since the grinding time of the two sides of the workpiece is twice as long as the grinding time of the top surface or bottom surface of the workpiece, when the bottom surface of the workpiece on the first base 21 is ground, its side surface needs to continue to be ground. During this time, the horizontal grinding head 3 moves to the top of the other workpiece to grind the top surface of the other workpiece. When the side surface of the workpiece on the first base 21 is ground, the top surface of the other workpiece is also ground. At this time, the workpiece on the first base 21 has been ground on four sides and is removed. The workpiece on the second base 22 is then inverted on the first base 21 and a new workpiece is placed on the second base 22. The operation is repeated to achieve flow-type grinding. By adopting the flow-type grinding method, a workpiece with four sides ground can be obtained each time the machine is stopped for unloading, and only one workpiece needs to be inverted each time the machine is stopped for unloading, thereby reducing the number of operating steps and improving production efficiency.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A flow-type grinding method for a linear guide rail four-side compound grinding machine, characterized by: The linear guide four-side compound grinding machine includes a bed, the length direction of the bed is horizontal, the width direction of the bed is longitudinal, and the height direction of the bed is vertical. A grinding machine worktable is provided on the top of the bed, and the grinding machine worktable is connected to the bed in a transverse sliding manner through a plurality of guide rail pairs. A first base and a second base are provided on the grinding machine worktable, which are arranged transversely and parallel to each other. The top surface of the first base is higher than the top surface of the second base. A horizontal grinding head and two vertical grinding heads are provided above the bed, and the horizontal grinding head can move longitudinally and vertically respectively. The vertical grinding head can move longitudinally and vertically respectively. The distance between the vertical center axis of the vertical grinding head and the longitudinal plane where the vertical center axis of the horizontal grinding head is located is the grinding distance, and the grinding distance is 315mm to 500mm. The flow-type grinding method of the linear guide rail four-side compound grinding machine comprises the following steps: Step 1: Place a workpiece on the first base or the second base, and grind the top surface of the workpiece with the horizontal grinding head; Step 2: Place the workpiece whose top surface has been ground in step 1 upside down on the first base, and place another workpiece on the second base; the time required for grinding the top or bottom surface of the workpiece is t1, and the time required for grinding both sides of the workpiece is t2, where t2 ≥ 2t1; Step 3: The horizontal grinding head grinds the bottom surface of the workpiece on the first base, and the two vertical grinding heads grind both sides of the workpiece on the first base respectively; Step 4: After the bottom surface of the workpiece on the first base is ground, the horizontal grinding head moves to the top of the workpiece on the second base to grind the top surface of the workpiece on the second base, and the two vertical grinding heads continue to grind both sides of the workpiece on the first base; Step 5: When both sides of the workpiece on the first base are ground and the top surface of the workpiece on the second base is ground, the workpiece on the first base is removed, and then the workpiece on the second base is turned upside down on the first base, and then a new workpiece to be processed is placed on the second base; Step 6: Repeat steps 3 to 5 to achieve continuous grinding.

2. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 1, characterized in that: The horizontal grinding head can move in the horizontal, longitudinal and vertical directions respectively.

3. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 2, characterized in that: It also includes a first gantry and a second gantry respectively cooperating with the bed, a horizontal grinding unit is provided on the side of the first gantry close to the second gantry, the horizontal grinding unit includes a first longitudinal slide connected to the first gantry for longitudinal sliding, a first vertical slide connected to the first longitudinal slide for vertical sliding, and a first transverse slide connected to the first vertical slide for transverse sliding, the horizontal grinding head is fixedly connected to the first transverse slide, the second gantry is provided with two vertical grinding units on the side close to the first gantry, the vertical grinding unit includes a second longitudinal slide connected to the second gantry for longitudinal sliding, and a second vertical slide connected to the second longitudinal slide for vertical sliding, the vertical grinding head is fixedly connected to the second vertical slide.

4. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 3, characterized in that: The first gantry and the second gantry are fixedly connected to form a box-shaped structure.

5. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 3, characterized in that: The width of the bed between the first gantry and the second gantry is greater than the width of the bed outside the first gantry and the second gantry.

6. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 2, characterized in that: The grinding distance is greater than the radius of the vertical grinding head and the radius of the horizontal grinding head.

7. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 6, characterized in that: It also includes a first gantry and a second gantry respectively cooperating with the bed, a horizontal grinding unit is provided on the side of the first gantry close to the second gantry, the horizontal grinding unit includes a first longitudinal slide connected to the first gantry for longitudinal sliding and a first vertical slide connected to the first longitudinal slide for vertical sliding, the horizontal grinding head is fixedly connected to the first vertical slide, the second gantry is provided with two vertical grinding units on the side close to the first gantry, the vertical grinding unit includes a second longitudinal slide connected to the second gantry for longitudinal sliding and a second vertical slide connected to the second longitudinal slide for vertical sliding, the vertical grinding head is fixedly connected to the second vertical slide.

8. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 7, characterized in that: The first gantry and the second gantry are fixedly connected to form a box-shaped structure.

9. The flow-type grinding method of a linear guide rail four-side compound grinding machine according to claim 7, characterized in that: The width of the bed between the first gantry and the second gantry is greater than the width of the bed outside the first gantry and the second gantry.

Images