Tailstock support structure for grinding machine

Abstract

The utility model relates to the technical field of grinding machine equipment, concretely to a tailstock support structure for grinding machine processing, include: tailstock support main part, centre, tailstock support main part side wall is connected with the hydraulic cylinder who sets up, and the push rod transmission connection of hydraulic cylinder output end and tailstock support main part swing setting, and the centre is arranged in the push rod end through the connecting assembly, the connecting key is embedded in the key groove, makes the plug -in post insert into the jack -in hole and the slot in proper order, realizes the axial fixed of centre and push rod, along the push rod peripheral wall sliding sleeve, makes the sleeve block shelter in the embedded groove, rotates L shape and clamps the board to make it clamp into the card slot, and the L shape and clamps the board inner side wall and the convex dish end wall are pasted, spring reset pushes and drives the trapezoidal slide block to remove and makes its side wall pastes the pad block end wall, avoids the rotation of L shape and clamps the board, completes the fixing of L shape and pushes the board, and further completes the installation of centre, simple and convenient operation, and the centre dismounting process does not need to help additional auxiliary tool, improves the dismounting replacement efficiency of centre greatly.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a tailstock support structure for grinding machine processing. Background Technology

[0002] When grinding shaft-type parts using a grinding machine, a tailstock support structure needs to be set up to tighten and fix the other end of the shaft-type parts, so as to avoid shaft runout and other phenomena during processing, thereby reducing the grinding accuracy.

[0003] Chinese patent document CN212947234U discloses a guideway-type tailstock support structure for grinding machine processing, including a base plate, a moving structure assembly, and a center support structure. The moving structure assembly is mounted on the base plate, and the center support structure is mounted on the moving structure assembly. The moving structure assembly includes a moving structure, a position adjustment structure, and a ranging structure, with the position adjustment structure and the ranging structure arranged side-by-side on both sides of the moving structure. The guideway-type tailstock support structure is fixed to the grinding machine, and the tightening and loosening of shaft-type workpieces is achieved by moving the moving structure assembly relative to the grinding end of the machine in relative and opposite directions. The position adjustment structure and the ranging structure adjust the position of the center support structure mounted on the moving structure, thereby ensuring smooth tightening operations.

[0004] However, in the above-mentioned solutions and existing technologies, when the grinding machine is in use, the tailstock support structure is driven by a hydraulic cylinder or a rotating screw to move the push rod forward, so that the center connected to the end of the push rod moves and presses against the workpiece. During use, the center is usually fixed to the end of the push rod by tightening bolts or welding with auxiliary tools, which makes it inconvenient to disassemble and replace the center when it wears out. Improvement and optimization are needed.

[0005] Therefore, this utility model proposes a tailstock support structure for grinding machine processing to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a tailstock support structure for grinding machine processing to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tailstock support structure for grinding machine processing, comprising: a tailstock support body and a center; a hydraulic cylinder is connected to the side wall of the tailstock support body, the output end of the hydraulic cylinder is connected to a push rod movably disposed in the tailstock support body, and the end wall of the center is fitted with the end wall of the push rod; a connecting key is connected to the end wall of the center, and a keyway is formed on the end wall of the push rod to be fitted with the connecting key; the center is disposed at the end of the push rod through a connecting assembly.

[0008] Preferably, the connecting assembly includes a slot, a cam, an insert, a post, a sleeve, an L-shaped retaining plate, and a trapezoidal slider. The slot is formed on the side wall of the connecting key. A cam is fixedly fitted on the peripheral wall of the push rod. A slot is formed on the peripheral wall of the cam. A groove is formed on the peripheral wall of the push rod. An insertion hole is formed on the side wall of the groove.

[0009] Preferably, an insert block is embedded in the groove. The insert block is arc-shaped. A post is connected to the inner side wall of the insert block. The post is inserted into the insertion hole and slot. A sleeve is movably sleeved on the periphery of the push rod. The end wall of the sleeve fits against the side wall of the convex plate, and the inner wall of the sleeve abuts against the outside of the insert block.

[0010] Preferably, a boss is connected to the side wall of the sleeve, a pad is connected to the side wall of the boss, and an L-shaped clamping plate is rotatably mounted on the side wall of the boss. The L-shaped clamping plate is engaged with the clamping groove, and the inner side wall of the L-shaped clamping plate is in contact with the end wall of the boss.

[0011] Preferably, a trapezoidal groove is provided on the side wall of the L-shaped card plate, the trapezoidal groove passes through the pivot position of the L-shaped card plate, a trapezoidal slider is movably engaged in the trapezoidal groove, a spring is connected to the side wall of the trapezoidal slider, the other end of the spring is engaged with the side wall of the trapezoidal groove, and the side wall of the trapezoidal slider is in contact with the end wall of the pad block.

[0012] Preferably, an L-shaped lever is connected to the side wall of the trapezoidal slider, the L-shaped lever fits and covers the trapezoidal slide groove, an elastic buckle is connected to the side wall of the L-shaped lever, a limiting plate is connected to the side wall of the L-shaped lever, the limiting plate abuts against the side end of the L-shaped lever, and a buckle groove is opened on the side wall of the limiting plate, the elastic buckle is engaged with the buckle groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: By embedding the connecting key into the keyway, the insert pins are sequentially inserted into the insertion holes and slots, thus axially fixing the tip and the push rod. The sleeve slides along the periphery of the push rod, causing the sleeve to cover the insert block in the groove. The L-shaped locking plate is rotated to lock into the slot, and the inner side wall of the L-shaped locking plate is in contact with the end wall of the convex plate. The spring returns and pushes the trapezoidal slider to move so that its side wall is in contact with the end wall of the pad, preventing the L-shaped locking plate from rotating, thus completing the fixing of the L-shaped locking plate and completing the installation of the tip. The operation is simple and convenient, and the tip disassembly and assembly process does not require additional auxiliary tools, which greatly improves the efficiency of tip disassembly and replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the top structure connection of this utility model; Figure 3 This is an exploded view of the top structure connection of this utility model; Figure 4This is a schematic diagram of the sleeve structure connection of this utility model; Figure 5 This is an exploded view of the L-shaped card plate structure of this utility model.

[0015] In the diagram: 1. Tailstock support body; 2. Hydraulic cylinder; 3. Push rod; 4. Center point; 5. Connecting key; 6. Keyway; 7. Slot; 8. Breast plate; 9. Slot; 10. Insertion hole; 11. Insert block; 12. Insert post; 13. Sleeve; 14. Boss; 15. Pad block; 16. L-shaped card plate; 17. Trapezoidal slide; 18. Trapezoidal slider; 19. Spring; 20. L-shaped lever plate; 21. Elastic buckle; 22. Limiting plate; 23. Buckle groove; 24. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figures 1-5 This utility model provides a technical solution: a tailstock support structure for grinding machine processing, comprising: a tailstock support body 1 and a center point 4. A hydraulic cylinder 2 is connected to the side wall of the tailstock support body 1. The output end of the hydraulic cylinder 2 is connected to a push rod 3 movably disposed on the tailstock support body 1. The end wall of the center point 4 is fitted with the end wall of the push rod 3. A connecting key 5 is connected to the end wall of the center point 4. A keyway 6 is provided on the end wall of the push rod 3 and is fitted with the connecting key 5. The center point 4 is disposed at the end of the push rod 3 through a connecting component.

[0018] The engagement of the connecting key 5 and the keyway 6 enables the initial positioning of the tip 4 and the push rod 3, preventing the tip 4 from shifting circumferentially during rotation and ensuring machining accuracy.

[0019] The slot 7 in the connecting assembly is formed on the side wall of the connecting key 5. A protrusion 8 is fixedly sleeved on the periphery of the push rod 3. A slot 9 is formed on the periphery of the protrusion 8. A groove 10 is formed on the periphery of the push rod 3. An insertion hole 11 is formed on the side wall of the groove 10. An insert block 12 is embedded in the groove 10. The insert block 12 is arc-shaped. An insertion post 13 is connected to the inner side wall of the insert block 12. The insertion post 13 is inserted into the insertion hole 11 and the slot 7. A sleeve 14 is movably sleeved on the periphery of the push rod 3. The end wall of the sleeve 14 fits against the side wall of the protrusion 8.

[0020] The arc-shaped insert 12 can fit better with the periphery of the push rod 3, improving connection stability. By inserting the pin 13 into the insertion hole 11 and slot 7 in sequence, the connecting key 5 can be firmly fixed in the keyway 6, realizing the axial fixation of the tip 4 and the push rod 3. The end wall of the sleeve 14 fits with the side wall of the convex plate 8. The sleeve 14 can slide along the periphery of the push rod 3, which plays a role in shielding and protecting the insert 12, preventing the insert 12 from falling off due to external force during processing.

[0021] A boss 15 is connected to the side wall of the sleeve 14, a pad 16 is connected to the side wall of the boss 15, and an L-shaped clamping plate 17 is rotatably mounted on the side wall of the boss 15. The L-shaped clamping plate 17 is engaged with the clamping groove 9, and the inner side wall of the L-shaped clamping plate 17 is in contact with the end wall of the convex plate 8.

[0022] The L-shaped card plate 17 engages with the card slot 9, and the inner wall of the L-shaped card plate 17 fits against the end wall of the convex plate 8, which can restrict the sliding of the sleeve 14 and further ensure the stability of the position of the insert 12.

[0023] The L-shaped card plate 17 has a trapezoidal groove 18 on its side wall. The trapezoidal groove 18 passes through the pivot position of the L-shaped card plate 17. A trapezoidal slider 19 is movably engaged in the trapezoidal groove 18. A spring 20 is connected to the side wall of the trapezoidal slider 19. The other end of the spring 20 is engaged with the side wall of the trapezoidal groove 18. The side wall of the trapezoidal slider 19 is in contact with the end wall of the pad block 16.

[0024] The elastic force of the spring 20 can push the trapezoidal slider 19 to always be in contact with the end wall of the pad 16. Through the cooperation between the trapezoidal slider 19 and the pad 16, the rotation of the L-shaped clamp 17 can be limited, preventing the L-shaped clamp 17 from rotating on its own when not in operation, thus ensuring the reliability of the clamping.

[0025] An L-shaped lever plate 21 is connected to the side wall of the trapezoidal slider 19. The L-shaped lever plate 21 fits and covers the trapezoidal slide groove 18. An elastic buckle 22 is connected to the side wall of the L-shaped lever plate 21. A limiting plate 23 is connected to the side wall of the L-shaped lever plate 17. The limiting plate 23 abuts against the side end of the L-shaped lever plate 21. A buckle groove 24 is opened on the side wall of the limiting plate 23. The elastic buckle 22 is fastened to the buckle groove 24.

[0026] The L-shaped baffle 21 fits and covers the trapezoidal slide groove 18, preventing machining debris from entering the groove and ensuring the normal sliding of the trapezoidal slider 19. The limiting plate 23 abuts against the side of the L-shaped baffle 21, limiting its movement and preventing the trapezoidal slider 19 from falling off. The L-shaped baffle 21 is fixed by the engagement of the elastic buckle 22 with the buckle groove 24, thereby fixing the position of the trapezoidal slider 19 and further improving the stability of the overall structure. Working principle: Align the connecting key 5 on the end wall of the tip 4 with the keyway 6 on the end wall of the push rod 3, so that the connecting key 5 is embedded in the keyway 6, completing the initial positioning of the tip 4 and the push rod 3. Then, insert the block 12 into the groove 10 on the peripheral wall of the push rod 3. At this time, the insert post 13 on the inner side wall of the block 12 will be inserted into the insertion hole 11 on the side wall of the groove 10 and the slot 7 on the side wall of the connecting key 5 in sequence, realizing the axial fixation of the tip 4 and the push rod 3. Slide the sleeve 14 along the peripheral wall of the push rod 3 so that the end wall of the sleeve 14 fits against the side wall of the convex plate 8. The sleeve 14 covers the block 12 in the groove 10. Rotate the L-shaped retaining plate 17 on the side wall of the boss 15 so that the L-shaped retaining plate 17 is engaged with the boss. The L-shaped plate 17 is inserted into the slot 9 on the periphery of the disc 8, and the inner side wall of the L-shaped plate 17 is in contact with the end wall of the convex disc 8. When the L-shaped plate 17 is fully inserted into the slot 9, the spring 20 returns to its original position and pushes the trapezoidal slider 19 to move out of the trapezoidal slide groove 18. At this time, the side wall of the trapezoidal slider 19 is in contact with the end wall of the pad block 16 to prevent the L-shaped plate 17 from rotating. This pushes the L-shaped lever 21 so that the elastic buckle 22 on the L-shaped lever 21 is engaged into the buckle groove 24 on the side wall of the limiting plate 23, thus fixing the L-shaped lever 21 and fixing the position of the trapezoidal slider 19, completing the installation of the tip 4. The operation is simple and convenient, and the tip disassembly and assembly process does not require additional auxiliary tools, which greatly improves the efficiency of tip disassembly and replacement.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tailstock support structure for grinding machine processing, comprising: Tailstock support body (1) and tip (4). A hydraulic cylinder (2) is connected to the side wall of the tailstock support body (1). The output end of the hydraulic cylinder (2) is connected to the push rod (3) that is movably set on the tailstock support body (1). The end wall of the tip (4) is in contact with the end wall of the push rod (3). The feature is that: a connecting key (5) is connected to the end wall of the tip (4), and a keyway (6) is provided on the end wall of the push rod (3) to be fitted with the connecting key (5). The tip (4) is set at the end of the push rod (3) through a connecting component. The connecting assembly includes a slot (7), a cam (8), an insert (12), a post (13), a sleeve (14), an L-shaped card plate (17), and a trapezoidal slider (19). The slot (7) is opened on the side wall of the connecting key (5). The cam (8) is fixedly sleeved on the periphery of the push rod (3). A slot (9) is opened on the periphery of the cam (8). A groove (10) is opened on the periphery of the push rod (3). An insertion hole (11) is opened on the side wall of the groove (10).

2. The tailstock support structure for grinding machine processing according to claim 1, characterized in that: An insert (12) is embedded in the groove (10). The insert (12) is arc-shaped. A post (13) is connected to the inner side wall of the insert (12). The post (13) is inserted into the insertion hole (11) and the slot (7). A sleeve (14) is movably sleeved on the periphery of the push rod (3). The end wall of the sleeve (14) is in contact with the side wall of the convex plate (8). The inner wall of the sleeve (14) abuts against the outside of the insert (12).

3. The tailstock support structure for grinding machine processing according to claim 2, characterized in that: A boss (15) is connected to the side wall of the sleeve (14), a pad (16) is connected to the side wall of the boss (15), and an L-shaped clamping plate (17) is rotatably arranged on the side wall of the boss (15). The L-shaped clamping plate (17) is engaged with the groove (9), and the inner side wall of the L-shaped clamping plate (17) is in contact with the end wall of the convex plate (8).

4. The tailstock support structure for grinding machine processing according to claim 3, characterized in that: The L-shaped card plate (17) has a trapezoidal groove (18) on its side wall. The trapezoidal groove (18) passes through the pivot position of the L-shaped card plate (17). A trapezoidal slider (19) is movably engaged in the trapezoidal groove (18). A spring (20) is connected to the side wall of the trapezoidal slider (19). The other end of the spring (20) is engaged with the side wall of the trapezoidal groove (18). The side wall of the trapezoidal slider (19) is attached to the end wall of the pad block (16).

5. The tailstock support structure for grinding machine processing according to claim 4, characterized in that: An L-shaped lever plate (21) is connected to the side wall of the trapezoidal slider (19). The L-shaped lever plate (21) fits and covers the trapezoidal slide groove (18). An elastic buckle (22) is connected to the side wall of the L-shaped lever plate (21). A limiting plate (23) is connected to the side wall of the L-shaped lever plate (17). The limiting plate (23) abuts against the side end of the L-shaped lever plate (21). A buckle groove (24) is opened on the side wall of the limiting plate (23). The elastic buckle (22) is fastened to the buckle groove (24).

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