Stable hydraulic clamping device of numerical control roll grinder
By using a stable hydraulic clamping device for CNC roll grinding machines, the clamping disc is driven synchronously by hydraulic push rods and bevel gear mechanisms, combined with a stable support mechanism, which solves the problem of loosening in traditional mechanical clamping devices and achieves stable clamping and high-precision machining of rolls during high-speed grinding.
Patent Information
- Application Number
- CN202520744053.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-04-18
AI Technical Summary
The mechanical clamping device of traditional CNC roll grinding machines is prone to loosening of clamping force due to bolt loosening during high-speed rotary grinding, which affects the processing accuracy and stability of rolls, and may lead to increased roughness and dimensional deviation, or even the generation of scrap.
A stable hydraulic clamping device for CNC roll grinding machines is adopted. The synchronous rotation and movement of the clamping disc are achieved through hydraulic push rods and bevel gear mechanism. Combined with a stable support mechanism, the clamping stability is improved. The rotation of the clamping disc is driven by ball bearings and motor to ensure the stability of the roll during the processing.
It improves the stability and processing accuracy of roll clamping, reduces clamping loosening caused by centrifugal force, and enhances finished product quality and production efficiency.
Smart Images
Figure CN223802364U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control roll grinder technical field more specifically, the utility model relates to numerical control roll grinder stable type hydraulic clamping device. BACKGROUND
[0002] Numerical control grinder is the machine tool that utilizes abrasive tool to carry out grinding processing to workpiece surface through numerical control technology, in the field of roll processing, numerical control roll grinder is the key equipment that carries out precision grinding processing to roll, and clamping device as important component part of grinder, directly influences the processing accuracy and production efficiency of roll.
[0003] Traditional clamping mode clamping stability is poor, with common mechanical clamping device as an example, it is fixed to roll through bolt, nut and other components, in the high speed rotation grinding process of grinder, since roll is subjected to greater grinding force and centrifugal force, mechanical clamping device is easy to cause clamping force to appear loose due to bolt loosening, causes roll to displace and vibrate, this not only will influence the processing accuracy of roll, causes the roughness of roll surface to increase, size deviation to increase, seriously will also lead to scrap production, increase production cost, therefore, a numerical control roll grinder stable type hydraulic clamping device is provided. CONTENT OF THE UTILITY MODEL
[0004] In order to overcome above-mentioned defects of prior art, the utility model provides numerical control roll grinder stable type hydraulic clamping device to solve the problems in above-mentioned background art.
[0005] In order to achieve the above object, the utility model provides the following technical scheme: numerical control roll grinder stable type hydraulic clamping device, including grinder table, the top side of grinder table is equipped with first limit sliding slot, the top of first limit sliding slot is provided with moving plate, one side of the inner chamber of first limit sliding slot is provided with first hydraulic push rod, and the first hydraulic push rod is started to control moving plate to move, which is convenient for adjusting the distance of two clamping discs and facilitating the clamping use of roll of different lengths, the side, away from first limit sliding slot, of the top of grinder table is fixedly connected with fixed plate, the top of grinder table is provided with stable support mechanism, and through stable support mechanism, stable support can be carried out during clamping, and the stability of clamping is improved;
[0006] The opposite side of the moving plate and the fixed plate is provided with a clamping disc, a plurality of second limiting sliding grooves are formed in one side of the clamping disc, a threaded rod is arranged in the middle of the second limiting sliding groove, a first bevel gear is fixedly connected to the opposite end of the threaded rod, a second bevel gear is arranged on one side of the first bevel gear, a first gear is fixedly connected to one side of the second bevel gear, a rack is engaged with one side of the first gear, a second hydraulic push rod is arranged on one side of the rack, and the second hydraulic push rod is started to control the movement of the rack. The first gear can control the rotation of the second bevel gear, so as to synchronously drive the rotation of the plurality of first bevel gears, and then control the rotation of the threaded rod, so that the clamping plate moves synchronously around the clamping disc. It is convenient to clamp and fix one end of the roller, and the use effect is improved.
[0007] The middle of the second limiting sliding groove is inserted with a clamping plate, the clamping disc on one side of the moving plate is fixedly connected to one side of the moving plate close to the moving plate, the clamping disc on one side of the moving plate is fixedly connected to an inlet pipe on one side of the clamping disc, the bottom of the clamping disc is provided with a second gear, and the second gear is provided with a motor on one side. The second gear is started to control the rotation of the second gear, the clamping disc on one side of the moving plate can be controlled to rotate through the connecting tooth block, and the driving use is convenient. The high-pressure liquid is input into the second hydraulic push rod through the inlet pipe, and the driving use is convenient.
[0008] Preferably, the moving end of the first hydraulic push rod is fixedly connected to one side of the bottom end of the moving plate, and the bottom end of the moving plate is arranged in the first limiting sliding groove and is in sliding connection with the inner cavity of the first limiting sliding groove. The first hydraulic push rod is started to control the horizontal movement of the moving plate, and it is convenient to adapt to rollers of different lengths for clamping use.
[0009] Preferably, the clamping disc on one side of the fixed plate is fixed on the fixed plate, a plurality of balls are embedded on the surface of the clamping plate close to the fixed plate, and one side of the clamping plate is provided in an arc-shaped structure. The balls can make the clamping plate on one side of the fixed plate clamp one end of the roller without affecting the rotation of the roller for machining use.
[0010] Preferably, the first bevel gear is engaged with the second bevel gear, one end of the threaded rod penetrates the clamping plate and is in threaded connection with the clamping plate, the rack is engaged with the first gear, and the movement of the rack can control the first gear to drive the second bevel gear to rotate, so as to drive the first bevel gear to drive the threaded rod to rotate, thereby facilitating the driving use.
[0011] Preferably, the connecting tooth block is embedded in the middle of the moving plate, the cross-sectional shape of the connecting tooth block is provided in a "T" shape, the connecting tooth block is engaged with the second gear, and the motor is fixed on one side of the moving plate. The second gear is started to control the rotation of the second gear to drive the connecting tooth block to rotate, so as to drive the clamping disc on one side of the moving plate to rotate, thereby facilitating the driving use.
[0012] Preferably, the stable supporting mechanism comprises a supporting plate arranged on the top of the grinding machine table, both sides of the supporting plate are fixedly connected with stable sliding grooves arranged at corresponding positions of the grinding machine table, both sides of the supporting plate are provided with stable sliding strips matched with the stable sliding grooves, the stable sliding strips are arranged in the middle of the stable sliding grooves, and fastening bolts are symmetrically inserted into the top of the supporting plate.
[0013] Preferably, the top of the supporting plate is provided with a stable supporting plate, the bottom of the stable supporting plate is symmetrically provided with stable expansion plates around, an electric push rod is fixedly connected to the middle of the bottom of the stable supporting plate, the stable supporting plate facilitates stable support of the rolling mill during installation, improves the stability during clamping, the height of the stable supporting plate can be adjusted as required by starting the electric push rod, the stability of the stable supporting plate is improved through the stable expansion plates, the stable supporting plate can slide on the top of the grinding machine table through cooperation of the supporting plate and the stable sliding grooves, the position of the stable supporting plate is adjusted, and the position of the supporting plate is fixed by extruding the wall of the grinding machine table through the fastening bolts, thereby facilitating use.
[0014] The technical effects and advantages of the utility model are as follows:
[0015] 1. The utility model discloses a first toothed rack is controlled to drive a first gear to rotate through the second hydraulic push rod, thereby controlling a plurality of first bevel gears to drive a threaded rod to rotate through a second bevel gear, which facilitates synchronous driving of a plurality of clamping plates to clamp and fix the two ends of the rolling mill, and the stability of the toothed rack can be improved through the hydraulic driving of the clamping plate, thereby improving the stability of the threaded rod and the stability of clamping the rolling mill, improving the processing effect, and the stable supporting mechanism can support during installation, improving the stability during installation.
[0016] 2. The utility model discloses a ball can be used to make one end of the rolling mill rotatably connected with the clamping disc close to one end of the fixed plate, and the rotation of the rolling mill is not affected through the limiting of the clamping plate, the clamping disc is driven to rotate through the starting of the motor to control the second gear to drive the connecting toothed block, which facilitates driving the rolling mill to rotate, facilitates processing and use, and the stable supporting plate is driven to move up and down through the starting of the electric push rod, which facilitates driving and adjusting the supporting height, and facilitates adaptive use.
[0017] In summary, through the mutual influence of the above-mentioned multiple effects, the stability during installation can be improved, and the stability of clamping the rolling mill during the working process can be improved, improving the quality of finished products. ACCURACY OF DRAWINGS
[0018] Figure 1 It is a whole structure schematic diagram of the utility model.
[0019] Figure 2 It is a cross section structure schematic diagram of the utility model.
[0020] Figure 3This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0021] Figure 4 This is a schematic diagram of the split cross-sectional structure of the clamping disc and clamping plate of this utility model.
[0022] Figure 5 This is a schematic diagram of the connection structure between the stabilizing plate and the support plate of this utility model.
[0023] Figure 6 This is a schematic diagram showing the disassembled structure of the motor, clamping disc, and clamping plate of this utility model.
[0024] The attached figures are labeled as follows: 1. Grinding table; 2. First limiting slide groove; 3. Moving plate; 4. First hydraulic push rod; 5. Fixed plate; 6. Clamping plate; 7. Second limiting slide groove; 8. Threaded rod; 9. First bevel gear; 10. Second bevel gear; 11. First gear; 12. Rack; 13. Second hydraulic push rod; 14. Clamping plate; 15. Ball bearing; 16. Connecting tooth block; 17. Liquid inlet pipe; 18. Second gear; 19. Motor; 20. Support plate; 21. Stabilizing support plate; 22. Stabilizing telescopic plate; 23. Electric push rod; 24. Stabilizing slide groove; 25. Fastening bolt. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] As attached Figures 1-6 The CNC roll grinding machine stable hydraulic clamping device shown includes a grinding table 1. A first limiting slide groove 2 is provided on one side of the top of the grinding table 1. A moving plate 3 is provided on the top of the first limiting slide groove 2. A first hydraulic push rod 4 is provided on one side of the inner cavity of the first limiting slide groove 2. Activating the first hydraulic push rod 4 controls the movement of the moving plate 3, which facilitates the adjustment of the distance between the two clamping plates 6 to accommodate rolls of different lengths for clamping. A fixing plate 5 is fixedly connected to the side of the top of the grinding table 1 away from the first limiting slide groove 2. A stable support mechanism is provided on the top of the grinding table 1. Through the stable support mechanism, stable support can be provided during clamping, improving the stability of clamping.
[0027] The opposite side of the moving plate 3 and the fixed plate 5 is provided with a clamping disc 6, one side of the clamping disc 6 is provided with a plurality of second limiting sliding grooves 7, the middle part of the second limiting sliding groove 7 is provided with a threaded rod 8, the opposite end of the plurality of threaded rods 8 is fixedly connected with a first bevel gear 9, one side of the first bevel gear 9 is provided with a second bevel gear 10, one side of the second bevel gear 10 is fixedly connected with a first gear 11, one side of the first gear 11 is engaged with a rack 12, one side of the rack 12 is provided with a second hydraulic push rod 13, starting the second hydraulic push rod 13 controls the rack 12 to move, the first gear 11 can control the second bevel gear 10 to rotate, thereby synchronously driving a plurality of first bevel gears 9 to rotate at the same time, and then controlling the threaded rod 8 to rotate, so that the clamping plate 14 moves synchronously around the clamping disc 6, facilitating clamping and fixing one end of the roller, and improving the use effect;
[0028] The middle part of the second limiting sliding groove 7 is inserted with a clamping plate 14, the clamping disc 6 on one side of the moving plate 3 is fixedly connected with a connecting tooth block 16 close to one side of the moving plate 3, one side of the connecting tooth block 16 is fixedly connected with a liquid inlet pipe 17, the bottom of the connecting tooth block 16 is provided with a second gear 18, one side of the second gear 18 is provided with a motor 19, starting the motor 19 controls the second gear 18 to rotate, the connecting tooth block 16 can control the clamping disc 6 on one side of the moving plate 3 to rotate, facilitating driving use, and the high-pressure liquid in the second hydraulic push rod 13 is conveniently input through the liquid inlet pipe 17, facilitating driving use.
[0029] As shown in the accompanying drawings Figure 1 , 2 , 3, 4, 6, the moving end of the first hydraulic push rod 4 is fixedly connected with the bottom end on one side of the moving plate 3, the bottom end of the moving plate 3 is arranged in the interior of the first limiting sliding groove 2 and is in sliding connection with the inner cavity of the first limiting sliding groove 2, the clamping disc 6 on one side of the fixed plate 5 is fixed on the fixed plate 5, a plurality of balls 15 are embedded on the surface of the clamping plate 14 close to the fixed plate 5, one side of the clamping plate 14 is provided as an arc-shaped structure, the first bevel gear 9 is engaged with the second bevel gear 10, one end of the threaded rod 8 penetrates through the clamping plate 14 and is in threaded connection with the clamping plate 14, the rack 12 is engaged with the first gear 11, the connecting tooth block 16 is embedded in the middle part of the moving plate 3, the cross-sectional shape of the connecting tooth block 16 is provided as a "T" shape, the connecting tooth block 16 is engaged with the second gear 18, the motor 19 is fixed on one side of the moving plate 3, starting the first hydraulic push rod 4 controls the horizontal movement of the moving plate 3, facilitating the clamping use of rollers with different lengths, the balls 15 can make the clamping plate 14 on one side of the fixed plate 5 clamping one end of the roller without affecting the rotation processing use of the roller, the movement of the rack 12 can control the first gear 11 to drive the second bevel gear 10 to rotate, thereby driving the first bevel gear 9 to drive the threaded rod 8 to rotate, facilitating driving use, starting the motor 19 controls the second gear 18 to drive the connecting tooth block 16 to rotate, which can drive the clamping disc 6 on one side of the moving plate 3 to rotate, facilitating driving use.
[0030] As shown in the accompanying drawingsFigure 1 、 5 As shown in the drawings, the stable supporting mechanism comprises a supporting plate 20 arranged on the top of the grinding machine table 1, two stable sliding grooves 24 are fixedly connected to the corresponding positions of the two sides of the supporting plate 20, stable sliding strips are arranged on the two sides of the supporting plate 20 and matched with the stable sliding grooves 24, the stable sliding strips are arranged in the middle of the stable sliding grooves 24, fastening bolts 25 are symmetrically inserted into the top of the two sides of the supporting plate 20, a stable supporting plate 21 is arranged on the top of the supporting plate 20, stable expansion plates 22 are symmetrically arranged around the bottom of the stable supporting plate 21, and an electric push rod 23 is fixedly connected to the middle of the bottom of the stable supporting plate 21, so that the roller can be stably supported during installation, the stability during clamping is improved, the height of the stable supporting plate 21 can be adjusted according to the requirement by starting the electric push rod 23, the stability of the stable supporting plate 21 is improved through the stable expansion plates 22, the stable supporting plate 21 can slide on the top of the grinding machine table 1 through the cooperation of the supporting plate 20 and the stable sliding grooves 24, the position of the stable supporting plate 21 can be adjusted, and the position of the supporting plate 20 can be fixed by extruding the wall of the grinding machine table 1 through the fastening bolts 25, so that the use is facilitated.
[0031] The working principle of the utility model is as follows: during use, the roller is placed on the top of the stable supporting plate 21, the stability during clamping is improved, and the height of the roller is same with the central axis of the clamping disc 6 when the stable supporting plate 21 moves up and down under the control of the electric push rod 23, so that the machining precision is improved.
[0032] Then the first hydraulic push rod 4 is started to control the moving plate 3 to move, so that the clamping disc 6 on one side of the moving plate 3 is driven to move to one side of the roller, until the two ends of the roller are respectively attached to the wall of the two clamping discs 6, then the second hydraulic push rod 13 is started to control the clamping plates 14 to clamp the two ends of the roller in sequence, the clamping is driven through the cooperation of multiple structures, so that the clamping looseness caused by centrifugal force is avoided, the stability of clamping is improved, and the quality of finished products is improved.
[0033] Then the motor 19 is started to control the second gear 18 to drive one clamping disc 6 to rotate in sequence, so that the roller is controlled to rotate, and the driving machining is facilitated.
[0034] The above only describes the preferred embodiments of the utility model, and is not used for limiting the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A stable hydraulic clamping device for a CNC roll grinder, comprising a grinder table (1), characterized in that: The top side of the grinding machine table (1) is provided with a first limiting sliding groove (2), the top of the first limiting sliding groove (2) is provided with a moving plate (3), the inner cavity of the first limiting sliding groove (2) is provided with a first hydraulic push rod (4), the top of the grinding machine table (1) is fixedly connected with a fixed plate (5) away from the first limiting sliding groove (2), and the top of the grinding machine table (1) is provided with a stable supporting mechanism. The opposite side of the moving plate (3) and the fixed plate (5) is provided with a clamping disc (6), a plurality of second limiting sliding grooves (7) are formed in one side of the clamping disc (6), a threaded rod (8) is arranged in the middle of the second limiting sliding groove (7), the opposite end of the threaded rod (8) is fixedly connected with a first bevel gear (9), one side of the first bevel gear (9) is provided with a second bevel gear (10), one side of the second bevel gear (10) is fixedly connected with a first gear (11), one side of the first gear (11) is engaged with a rack (12), and one side of the rack (12) is provided with a second hydraulic push rod (13). The middle of the second limiting sliding groove (7) is inserted with a clamping plate (14), the clamping disc (6) on one side of the moving plate (3) is fixedly connected with a connecting tooth block (16) close to the moving plate (3), the connecting tooth block (16) is fixedly connected with a liquid inlet pipe (17) on one side, the bottom of the connecting tooth block (16) is provided with a second gear (18), and the second gear (18) is provided with a motor (19) on one side.
2. The numerically controlled roll grinder stable hydraulic clamping device according to claim 1, characterized in that: The moving end of the first hydraulic push rod (4) is fixedly connected with the bottom end of the moving plate (3), and the bottom end of the moving plate (3) is arranged in the first limiting sliding groove (2) and is in sliding connection with the inner cavity of the first limiting sliding groove (2).
3. The numerically controlled roll grinder stable hydraulic clamping device according to claim 1, characterized in that: The clamping disc (6) on one side of the fixed plate (5) is fixed on the fixed plate (5), a plurality of balls (15) are embedded on the surface of the clamping plate (14) close to the fixed plate (5), and one side of the clamping plate (14) is provided in an arc structure.
4. The numerically controlled roll grinder stable hydraulic clamping device according to claim 1, characterized in that: The first bevel gear (9) is engaged with the second bevel gear (10), one end of the threaded rod (8) penetrates the clamping plate (14) and is in threaded connection with the clamping plate (14), and the rack (12) is engaged with the first gear (11).
5. The numerically controlled roll grinder stable hydraulic chucking device according to claim 1, characterized in that: The connecting tooth block (16) is embedded in the middle of the moving plate (3), the cross section of the connecting tooth block (16) is provided in a "T" shape, the connecting tooth block (16) is engaged with the second gear (18), and the motor (19) is fixed on one side of the moving plate (3).
6. The numerically controlled roll grinder stable hydraulic chucking device according to claim 1, characterized in that: The stable supporting mechanism comprises a supporting plate (20) arranged on the top of the grinding machine table (1), and stable sliding grooves (24) are fixedly connected to the corresponding positions of the two sides of the grinding machine table (1) and the supporting plate (20).
7. The numerically controlled roll grinder stable hydraulic chucking device according to claim 6, characterized in that: The top of the support plate (20) is provided with a stable supporting plate (21), the bottom of the stable supporting plate (21) is symmetrically provided with stable expansion plates (22) around, and the bottom of the stable supporting plate (21) is fixedly connected with an electric push rod (23) at the middle position.