Sliding adjusting mechanism for spindle box of grinding machine

Abstract

The utility model belongs to the technical field of grinding machine equipment, and particularly relates to a grinding machine spindle box sliding adjusting mechanism which comprises a grinding machine base and two spindle boxes, the top of the grinding machine base is fixedly connected with two supporting seats, the front sides and the rear sides of the two spindle boxes are fixedly connected with fixing plates, the tops of the fixing plates are in threaded connection with two screws, and the two supporting seats are fixedly connected with the two screws. The bottom of the spindle box is fixedly connected with a spindle sliding seat through four screws. The device is reasonable in structural design, the two pieces of shielding cloth can move along with the movement of the spindle sliding seat through the shielding mechanism, so that the two pieces of shielding cloth can shield the supporting seat all the time, and the situation that chippings formed by grinding fall into the supporting seat, so that the spindle sliding seat cannot be stably and smoothly adjusted in a sliding mode, the sliding adjustment precision is reduced, and the service life of the spindle sliding seat is prolonged is avoided. And the two pieces of shielding cloth can be detached while the spindle box is detached, so that components in the spindle box and the supporting seat can be maintained conveniently, and overhaul and maintenance are more convenient, rapid and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machine equipment, in particular to a sliding adjustment mechanism for a grinding machine spindle box. Background Technique

[0002] Grinding is the most common and widely used processing method in all mechanical processing. The surfaces or edges of many workpieces need to be ground into the required designed shapes, such as chamfering, rounding of the workpiece edges or surface grinding of irregular planes. In the actual production process, many workpieces usually need to be ground on both sides, so double-sided grinding machines have emerged as the times require. In the structure of a double-sided grinding machine, in order to realize the distance adjustment between two grinding heads, the spindle boxes driving the two grinding heads to operate are usually set to be slidable relative to the grinding machine main body, and a corresponding driving mechanism is arranged on the grinding machine main body to drive the spindle box to slide.

[0003] After retrieval: A sliding adjustment mechanism for a grinding machine spindle box with the authorization announcement number of CN221065855U includes a spindle box bottom plate and a support seat. The spindle box bottom plate is slidably matched with the support seat. A driving mechanism for driving the spindle box bottom plate to slide is arranged on the grinding machine main body. The upper end of the support seat is provided with a concave chute extending along its length direction. The cross-section of the chute is an inverted isosceles trapezoid groove. The two sides of the lower end of the spindle box bottom plate are provided with inclined surfaces slidably matched with the two side walls of the chute.

[0004] However, the above-mentioned sliding adjustment mechanism for the grinding machine spindle box still has deficiencies. Due to the arrangement of components such as the chute and the inclined surface sliding guide assembly, it is inconvenient to shield and seal it. During grinding processing, the debris formed by grinding is easily dropped between the spindle box bottom plate and the support seat, affecting the normal sliding of the spindle box bottom plate, and is not conducive to the disassembly, assembly, inspection and maintenance of the spindle box and the driving mechanism, reducing the use effect. Therefore, we propose a sliding adjustment mechanism for a grinding machine spindle box to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned drawbacks and propose a sliding adjustment mechanism for a grinding machine spindle box.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A sliding adjustment mechanism for the spindle box of a grinding machine, comprising a grinding machine base and two spindle boxes. Two support seats are fixedly connected to the top of the grinding machine base. Fixing plates are fixedly connected to the front and rear sides of the two spindle boxes. Two screws are threadedly connected to the top of the fixing plate. The bottom of the spindle box is fixedly connected to a spindle slide through four screws. An adjustment mechanism for sliding adjustment of the distance between the two spindle boxes is provided between the two support seats and the two spindle slides. Two shielding cloths are laid on the top of the support seats. A shielding mechanism is provided between the shielding cloths, the support seats and the spindle slides. A disassembly and assembly mechanism is provided between the shielding cloths, the screws and the spindle slides.

[0008] Preferably, the adjustment mechanism includes a feed motor fixedly connected to one side of the support seat on the right side, and a bidirectional screw rotatably connected between the two support seats. The output shaft of the feed motor is fixedly connected to one end of the bidirectional screw. The two spindle slides are both threadedly sleeved on the outside of the bidirectional screw.

[0009] Preferably, sliding rails are fixedly connected to the inner walls of the front and rear sides of the support seat. The spindle slide is slidably sleeved on the outside of the two sliding rails. The spindle slide is slidably connected in the support seat.

[0010] Preferably, two installation cavities are formed in the support seat. The shielding mechanism includes two torsion springs and a rotating shaft rotatably connected to the inner walls of the front and rear sides of the installation cavity. A winding roller is fixedly sleeved on the outside of the rotating shaft. The two torsion springs are fixedly connected to the inner walls of the front and rear sides of the installation cavity respectively at the ends away from each other. The winding roller is fixedly connected to the ends of the two torsion springs close to each other. The shielding cloth is movably sleeved on the outside of the winding roller. The two shielding cloths are respectively fixedly connected to both sides of the spindle slide.

[0011] Preferably, the two torsion springs on the same side are both sleeved on the outside of the rotating shaft. Two outlets are formed in the top of the support seat. The two shielding cloths are slidably sleeved in the corresponding outlets.

[0012] Preferably, four cavities are formed in the main shaft slide base. Two grooves are formed in one inner wall of each cavity. Slots are formed on both sides of the main shaft slide base. The disassembly and assembly mechanism includes two racks slidably arranged in the cavities, a gear rotatably connected to the inner wall at the rear side of the cavity, and a plug fixedly connected to one end of the shielding cloth. The bottom end of the screw abuts against the top end of the corresponding rack in a movable manner. The gear meshes with the two racks. Connecting plates are fixedly connected to the front sides of the two racks. Clamping blocks are fixedly connected to the inner sides of the two connecting plates. The plug is movably inserted into the corresponding slot. Card slots are formed in the top and bottom of the plug. The two clamping blocks are respectively movably clamped in the corresponding card slots. Two springs are fixedly connected to the inner walls of the two grooves away from each other. The inner ends of the four springs are respectively fixedly connected to the outer sides of the corresponding connecting plates.

[0013] Preferably, the two connecting plates are respectively slidably sleeved in the corresponding grooves, and the two racks are both slidably sleeved in the cavities.

[0014] Preferably, a lubricating oil injection cavity is formed in the main shaft slide base. Three oil outlet channels are fixedly communicated with the bottom inner wall of the lubricating oil injection cavity. An oil injection pipe is fixedly communicated with the front inner wall of the lubricating oil injection cavity. A sealing cover is threadedly sleeved on the outer side of the oil injection pipe.

[0015] In the present utility model, for the sliding adjustment mechanism of the grinding machine headstock, when the bidirectional screw drives the main shaft slide base to slide and adjust, the main shaft slide base will drive the movement of the two shielding cloths, so that one shielding cloth is stretched and the other shielding cloth is shortened. The stretched shielding cloth will drive the reverse rotation and unwinding of the winding roller, and the torsion spring will be twisted and energy-stored. Under the torsion force of the torsion spring, the other shielding cloth will drive the forward rotation of the winding roller to wind the shielding cloth. Thus, the two shielding cloths can move along with the movement of the main shaft slide base, and then the support seat can be shielded and sealed, preventing the debris formed during grinding from falling into the joints between the support seat and the main shaft slide base, between the main shaft slide base and the bidirectional screw, and between the main shaft slide base and the slide rail, which may otherwise cause the main shaft slide base to fail to slide and adjust smoothly and stably, reducing the accuracy of sliding adjustment.

[0016] In the present utility model, for the sliding adjustment mechanism of the grinding machine spindle box, when maintenance is required, unscrew the screw, and thus the fixing plate and the spindle box are no longer fixed. At this time, the spindle box can be removed for maintenance. Since there is no screw pressing on a rack, under the elastic force of the spring, the two connecting plates, the two racks and the clamping block will move away from each other and disengage from the card slot, and thus the inserting block is no longer fixed. Then the shielding cloth can be retracted without shielding the support seat, so as to facilitate the maintenance work on the components in the support seat, making the inspection and maintenance more convenient and efficient. After the maintenance is completed, pull the shielding cloth and the inserting block again, so that the inserting block is inserted into the slot, and then tighten the screw to fix the fixing plate and the spindle box on the top of the spindle slide. At the same time, under the downward extrusion of the screw, a rack will move downward to drive the rotation of the gear, and the gear drives the upward movement of the other rack. The mutual approach of the two racks drives the mutual approach of the two connecting plates and the clamping block, and they are respectively clamped in the corresponding card slots. Thus, while fixing the spindle box, the two shielding cloths are fixed on both sides of the spindle slide for use, improving the convenience of installation;

[0017] The structure of the present utility model is reasonably designed. Through the shielding mechanism, the two shielding cloths can move along with the movement of the spindle slide, so that the two shielding cloths can always shield the support seat, preventing the debris formed by grinding from falling into the support seat, which may cause the spindle slide to be unable to slide and adjust smoothly and stably, reducing the accuracy of the sliding adjustment. Moreover, it is beneficial to remove the two shielding cloths when disassembling the spindle box, so as to facilitate the maintenance of the components in the spindle box and the support seat, making the inspection and maintenance more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a sliding adjustment mechanism of a grinding machine spindle box proposed by the present utility model;

[0019] Figure 2 is a three-dimensional view of the support seat, slide rail, feed motor and bidirectional screw of a sliding adjustment mechanism of a grinding machine spindle box proposed by the present utility model;

[0020] Figure 3 is a cross-sectional view of a sliding adjustment mechanism of a grinding machine spindle box proposed by the present utility model;

[0021] Figure 4 is Figure 1 a schematic structural diagram of part A in

[0022] Figure 5 is Figure 3 a schematic structural diagram of part B in

[0023] Figure 6 is Figure 3 a schematic structural diagram of part C in

[0024] In the figure: 1. Grinder base; 2. Support seat; 3. Feed motor; 4. Spindle slide; 5. Spindle box; 6. Fixed plate; 7. Screw; 8. Shading cloth; 9. Bi-directional screw; 10. Slide rail; 11. Slot; 12. Insert block; 13. Oil injection pipe; 14. Sealing cover; 15. Oil outlet channel; 16. Installation cavity; 17. Rotating shaft; 18. Torsion spring; 19. Winding roller; 20. Rack; 21. Connecting plate; 22. Gear; 23. Cavity; 24. Card slot; 25. Card block; 26. Spring; 27. Groove; 28. Lubricating oil injection cavity. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Referring to Figures 1-6 , a sliding adjustment mechanism for a grinder spindle box includes a grinder base 1 and two spindle boxes 5. Two support seats 2 are fixedly connected to the top of the grinder base 1. Fixed plates 6 are fixedly connected to the front and rear sides of the two spindle boxes 5. Two screws 7 are threadedly connected to the top of the fixed plate 6. The bottom of the spindle box 5 is fixedly connected to the spindle slide 4 through four screws 7. An adjustment mechanism for sliding adjustment of the distance between the two spindle boxes 5 is provided between the two support seats 2 and the two spindle slides 4. Two shading cloths 8 are laid on the top of the support seats 2. A shielding mechanism is provided between the shading cloth 8, the support seat 2 and the spindle slide 4. A disassembly and assembly mechanism is provided between the shading cloth 8, the screw 7 and the spindle slide 4.

[0027] Furthermore, the adjustment mechanism includes a feed motor 3 fixedly connected to one side of the right support seat 2, a bi-directional screw 9 rotatably connected between the two support seats 2. The output shaft of the feed motor 3 is fixedly connected to one end of the bi-directional screw 9. Both spindle slides 4 are threadedly sleeved on the outside of the bi-directional screw 9. By driving the rotation of the bi-directional screw 9 by the feed motor 3, the rotation of the bi-directional screw 9 drives the two spindle slides 4 to approach or move away from each other. Furthermore, the distance between the two spindle slides 4 and the spindle box 5 can be adjusted so that two grinding heads can perform double-sided grinding on workpieces of different thicknesses. The spindle slide 4 will slide along the support seat 2 and the two slide rails 10 to ensure the stability during movement.

[0028] Furthermore, slide rails 10 are fixedly connected to the inner walls of the front and rear sides of the support seat 2. The spindle slide 4 is slidably sleeved on the outside of the two slide rails 10. The spindle slide 4 is slidably connected to the support seat 2.

[0029] Furthermore, two mounting cavities 16 are formed in the support base 2. The shielding mechanism includes two torsion springs 18 and a rotating shaft 17 rotatably connected to the front and rear inner walls of the mounting cavity 16. A winding roller 19 is fixedly sleeved on the outer side of the rotating shaft 17. One end of each of the two torsion springs 18 away from each other is fixedly connected to the front and rear inner walls of the mounting cavity 16 respectively. The winding roller 19 is fixedly connected to one end of each of the two torsion springs 18 close to each other. The shielding cloth 8 is movably sleeved on the outer side of the winding roller 19. The two shielding cloths 8 are respectively fixedly connected to both sides of the main shaft sliding seat 4.

[0030] With the above scheme: when the main shaft sliding seat 4 slides, the main shaft sliding seat 4 will drive the movement of the two shielding cloths 8, so that one shielding cloth 8 is stretched and the other shielding cloth 8 is shortened. The stretched shielding cloth 8 will drive the reverse rotation and unwinding of the winding roller 19, and the torsion spring 18 will be twisted and energy-stored. Under the torsion of the other torsion spring 18, the other shielding cloth 8 will drive the forward rotation of the winding roller 19 to wind the shielding cloth 8. Thus, the two shielding cloths 8 can move along with the movement of the main shaft sliding seat 4, and then the support base 2 can be shielded and sealed, avoiding the debris formed during grinding processing from falling into the joints between the support base 2 and the main shaft sliding seat 4, between the main shaft sliding seat 4 and the bidirectional screw 9, and between the main shaft sliding seat 4 and the slide rail 10, so that the main shaft sliding seat 4 cannot slide and adjust smoothly and stably, reducing the accuracy of sliding adjustment.

[0031] Furthermore, the two torsion springs 18 on the same side are both sleeved on the outer side of the rotating shaft 17. Two outlets are formed at the top of the support base 2. The two shielding cloths 8 are slidably sleeved in the corresponding outlets, which is beneficial to guiding and limiting the shielding cloth 8 and the torsion spring 18, making their movement more stable.

[0032] Furthermore, four cavities 23 are formed in the main shaft sliding seat 4. Two grooves 27 are formed on one inner wall of the cavity 23. Slots 11 are formed on both sides of the main shaft sliding seat 4. The disassembly and assembly mechanism includes two racks 20 slidably arranged in the cavity 23, a gear 22 rotatably connected to the rear inner wall of the cavity 23, and a plug 12 fixedly connected to one end of the shielding cloth 8. The bottom end of the screw 7 is movably abutted against the top end of the corresponding rack 20. The gear 22 meshes with the two racks 20. Connecting plates 21 are fixedly connected to the front sides of the two racks 20. Clamping blocks 25 are fixedly connected to the inner sides of the two connecting plates 21. The plug 12 is movably inserted into the corresponding slot 11. Slots 24 are formed at the top and bottom of the plug 12. The two clamping blocks 25 are respectively movably clamped in the corresponding slots 24. Two springs 26 are fixedly connected to the mutually remote inner walls of the two grooves 27. The inner ends of the four springs 26 are respectively fixedly connected to the outer sides of the corresponding connecting plates 21.

[0033] Adopting the above solution: When maintenance is required, unscrew the screw 7, and thus the fixing plate 6 and the headstock 5 are not fixed. At this time, the headstock 5 can be disassembled for repair and maintenance work. At the same time, because there is no screw 7 pressing on a rack 20, under the elastic force of the spring 26, the two connecting plates 21, the two racks 20 and the clamping block 25 will move away from each other and disengage from the clamping groove 24, and thus the plug 12 is not fixed, and the shielding cloth 8 can be retracted without shielding the support seat 2, so as to maintain the components in the support seat 2, making the repair and maintenance more convenient and efficient. After the maintenance is completed, pull the shielding cloth 8 and the plug 12 again, so that the plug 12 is inserted into the slot 11, and then tighten the screw 7 to fix the fixing plate 6 and the headstock 5 on the top of the main shaft slide 4. At the same time, under the downward extrusion of the screw 7, a rack 20 will move downward to drive the rotation of the gear 22, and the gear 22 drives the upward movement of the other rack 20. The mutual approach of the two racks 20 drives the mutual approach of the two connecting plates 21 and the clamping block 25 and they are respectively clamped in the corresponding clamping grooves 24. Thus, while fixing the headstock 5, the two shielding cloths 8 are fixed on both sides of the main shaft slide 4 for use, improving the convenience of installation.

[0034] Further, the two connecting plates 21 are respectively slidably sleeved in the corresponding grooves 27, and the two racks 20 are both slidably sleeved in the cavity 23, which can guide the connecting plates 21 and the racks 20 to make their movement more stable and smooth.

[0035] Further, a lubricating oil injection cavity 28 is formed in the main shaft slide 4. Three oil outlet channels 15 are fixedly communicated with the bottom inner wall of the lubricating oil injection cavity 28. An oil injection pipe 13 is fixedly communicated with the front side inner wall of the lubricating oil injection cavity 28. A sealing cover 14 is threadedly sleeved on the outer side of the oil injection pipe 13.

[0036] Adopting the above solution: When injecting lubricating oil, unscrew the sealing cover 14, inject the lubricating oil into the oil injection pipe 13, and the lubricating oil will flow into the lubricating oil injection cavity 28 and the three oil outlet channels 15, and finally flow into the connection between the bidirectional screw 9 and the main shaft slide 4, so as to achieve the lubricating effect and make the movement of the main shaft slide 4 more stable.

[0037] In the present utility model, during operation, according to the distance between the two headstocks 5, start the feed motor 3. The feed motor 3 drives the rotation of the bidirectional screw 9. The rotation of the bidirectional screw 9 drives the two main shaft slides 4 to approach or move away from each other, and thus the distance between the two main shaft slides 4 and the headstocks 5 can be adjusted, so that the two grinding heads can perform double-sided grinding on workpieces of different thicknesses. The main shaft slide 4 will slide along the support seat 2 and the two slide rails 10 to ensure the stability during movement.

[0038] When the main spindle slide 4 slides, the main spindle slide 4 will drive the movement of the two shielding cloths 8, causing one shielding cloth 8 to be stretched and the other shielding cloth 8 to be shortened. The stretched shielding cloth 8 will drive the reverse unwinding of the winding roller 19 and cause the torsion spring 18 to be twisted and store energy. Under the torque of the torsion spring 18, the other shielding cloth 8 will drive the forward rotation of the winding roller 19 to wind the shielding cloth 8. Furthermore, the two shielding cloths 8 can move with the movement of the main spindle slide 4, thereby shielding and sealing the support base 2 to prevent the debris formed during grinding from falling into the joints between the support base 2 and the main spindle slide 4, between the main spindle slide 4 and the bidirectional screw 9, and between the main spindle slide 4 and the slide rail 10. As a result, the main spindle slide 4 cannot slide and adjust smoothly, reducing the accuracy of the sliding adjustment.

Claims

1. A sliding adjustment mechanism for the spindle box of a grinding machine, characterized in that, It includes a grinding machine base (1) and two main spindle boxes (5). Two support seats (2) are fixedly connected to the top of the grinding machine base (1). Fixing plates (6) are fixedly connected to the front and rear sides of the two main spindle boxes (5). Two screws (7) are threadedly connected to the top of the fixing plate (6). The bottom of the main spindle box (5) is fixedly connected to a main spindle slide (4) through four screws (7). An adjusting mechanism for sliding adjustment of the distance between the two main spindle boxes (5) is provided between the two support seats (2) and the two main spindle slides (4). Two shielding cloths (8) are laid on the top of the support seats (2). A shielding mechanism is provided between the shielding cloth (8), the support seat (2) and the main spindle slide (4). A disassembly and assembly mechanism is provided between the shielding cloth (8), the screw (7) and the main spindle slide (4).

2. The sliding adjustment mechanism of the grinder headstock according to claim 1, wherein The adjusting mechanism includes a feed motor (3) fixedly connected to one side of the support seat (2) on the right side, and a bidirectional screw rod (9) rotatably connected between the two support seats (2). The output shaft of the feed motor (3) is fixedly connected to one end of the bidirectional screw rod (9). Both main spindle slides (4) are threadedly sleeved on the outer side of the bidirectional screw rod (9).

3. The sliding adjustment mechanism of a grinding machine spindle box according to claim 1, characterized in that Sliding rails (10) are fixedly connected to the inner walls of the front and rear sides of the support seat (2). The main spindle slide (4) is slidably sleeved on the outer sides of the two sliding rails (10). The main spindle slide (4) is slidably connected in the support seat (2).

4. A sliding adjustment mechanism for a grinding machine spindle box according to claim 1, characterized in that, Two installation cavities (16) are formed in the support seat (2). The shielding mechanism includes two torsion springs (18) and a rotating shaft (17) rotatably connected to the inner walls of the front and rear sides of the installation cavity (16). A winding roller (19) is fixedly sleeved on the outer side of the rotating shaft (17). The mutually remote ends of the two torsion springs (18) are respectively fixedly connected to the inner walls of the front and rear sides of the installation cavity (16). The winding roller (19) is fixedly connected to the mutually close ends of the two torsion springs (18). The shielding cloth (8) is movably sleeved on the outer side of the winding roller (19). The two shielding cloths (8) are respectively fixedly connected to both sides of the main spindle slide (4).

5. A sliding adjustment mechanism for the spindle box of a grinding machine according to claim 4, characterized in that, The two torsion springs (18) on the same side are both sleeved on the outer side of the rotating shaft (17). Two outlets are formed in the top of the support seat (2). The two shielding cloths (8) are slidably sleeved in the corresponding outlets.

6. The sliding adjustment mechanism of the grinding machine spindle box according to claim 1, characterized in that, Four cavities (23) are formed in the main shaft slide block (4). Two grooves (27) are formed in one inner wall of each cavity (23). Slots (11) are formed on both sides of the main shaft slide block (4). The disassembly and assembly mechanism includes two racks (20) slidably arranged in the cavities (23), a gear (22) rotatably connected to the inner wall at the rear side of the cavity (23), and a plug (12) fixedly connected to one end of the shielding cloth (8). The bottom end of the screw (7) is movably abutted against the top end of the corresponding rack (20). The gear (22) meshes with the two racks (20). Connecting plates (21) are fixedly connected to the front sides of the two racks (20). Clamping blocks (25) are fixedly connected to the inner sides of the two connecting plates (21). The plug (12) is movably inserted into the corresponding slot (11). Card slots (24) are formed at the top and bottom of the plug (12). The two clamping blocks (25) are respectively movably clamped in the corresponding card slots (24). Two springs (26) are fixedly connected to the inner walls on the mutually remote sides of the two grooves (27). The inner ends of the four springs (26) are respectively fixedly connected to the outer sides of the corresponding connecting plates (21).

7. The sliding adjustment mechanism of a grinding machine headstock according to claim 6, characterized in that, The two connecting plates (21) are respectively slidably sleeved in the corresponding grooves (27). The two racks (20) are both slidably sleeved in the cavities (23).

8. A sliding adjustment mechanism for a grinding machine headstock according to claim 1, characterized in that, A lubricating oil injection cavity (28) is formed in the main shaft slide block (4). Three oil outlet channels (15) are fixedly communicated with the bottom inner wall of the lubricating oil injection cavity (28). An oil injection pipe (13) is fixedly communicated with the front inner wall of the lubricating oil injection cavity (28). A sealing cover (14) is threadedly sleeved on the outer side of the oil injection pipe (13).

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