Grinding head clamping device for die steel grinding machine

Abstract

The utility model provides a grinding head clamping device for a die steel grinding machine, which comprises a connecting piece, a connecting cover, a driving shaft, a connecting block, a pair of mounting plates and a pair of buffer units, and the pair of buffer units are arranged at two opposite ends of the connecting cover; a connecting block is fixedly mounted at the bottom end of a driving shaft, a pair of mounting plates is mounted below the connecting block, a clamping groove is formed between the pair of mounting plates, a polishing head is horizontally placed in the clamping groove for limiting, the mounting plates are fixedly mounted on the connecting block through fasteners, and buffer units are arranged between the mounting plates and a connecting cover. In the process that the polishing head polishes the die steel, when the polishing head is subjected to impact load in the vertical direction, the impact load can be transmitted to the buffer unit through the mounting plate, so that the buffer unit deforms, the impact load borne by the polishing head is absorbed, and the polishing effect is improved. And the phenomenon that the grinding head is easily damaged due to rigid contact with the surface of the die steel when subjected to impact load is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grinding machine equipment technical field, concretely relates to a kind of polishing head clamping device for die steel grinding machine. BACKGROUND

[0002] Die steel is used to manufacture cold punch mould, hot forging mould pressure casting mould and the steel grade of mould, and the material of mould is the material and technical basis of mould manufacturing industry, and the variety, specification and quality of die steel are decisive for the performance, service life and manufacturing cycle of mould.

[0003] Die steel is equipped with die steel grinding machine specially used for die steel machining due to its high strength, high precision and complex shape machining requirement.Die steel grinding machine (surface grinder) in the process of polishing and machining die steel, the end face of die steel is polished by motor-driven grinding head, due to the high strength of die steel, the polishing head is usually made of diamond or cubic boron nitride material, although diamond has very high hardness, but poor toughness, internal cracks will rapidly expand under impact load (such as sudden impact, vibration).Rigid contact between polishing head and die steel in the process of polishing and machining die steel, polishing head is easily damaged due to other factors (such as uneven workpiece clamping) in the process of polishing, especially for complex shape die steel, polishing head is more easily damaged in the process of polishing. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a polishing head clamping device for die steel grinding machine, to solve the problem that the polishing head is easily damaged when polishing uneven die steel surface due to the rigid contact between the polishing head and the die steel in the process of polishing and machining die steel.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The present application provides a polishing head clamping device for die steel grinding machine, the polishing head clamping device is connected with driving motor, comprising:

[0007] Connecting piece, one end of connecting piece is used for being connected with driving motor;

[0008] Connecting cover, the other end of connecting piece is fixedly connected with connecting cover;

[0009] Driving shaft, the bottom end of driving shaft vertically passes through connecting cover, and driving shaft and connecting cover form rotary connection;

[0010] Connecting block, fixedly installed at the bottom end of driving shaft;

[0011] A pair of mounting plates are oppositely arranged below the connecting block, a clamping groove for mounting the polishing head is reserved between the pair of mounting plates, and the pair of mounting plates are fixedly mounted on the connecting block;

[0012] A pair of buffering units are arranged at opposite ends of the connecting cover, the upper end of the buffering unit is connected with the bottom end face of the connecting cover, the bottom end of the buffering unit is connected with the upper end face of the mounting plate, and the buffering unit is used for buffering the vertical load received by the mounting plate.

[0013] Further, the buffering unit comprises an elastic member, a connecting shaft, a bearing and a pair of mounting grooves, the pair of mounting grooves are arranged at the bottom end face of the connecting cover and the top end face of the mounting plate respectively, the upper end of the connecting shaft is rotatably mounted in the mounting groove at the connecting cover through the bearing, the lower end of the connecting shaft is rotatably mounted in the mounting groove at the mounting plate through the bearing, and the elastic member is mounted between the bearing and the groove bottom of the pair of mounting grooves respectively.

[0014] Further, the outer circumferential surface of the pair of mounting grooves is wound with an elastic spring.

[0015] Further, the elastic member is an elastic pressing block made of rubber.

[0016] Further, the connecting cover is provided with shielding plates extending vertically downward around the connecting cover.

[0017] Further, the shielding plates are made of silica gel.

[0018] The polishing head clamping device for the die steel grinding machine has the following beneficial effects:

[0019] By adopting the polishing head clamping device for the die steel grinding machine, the connecting block is fixedly mounted at the bottom end of the connecting shaft, a pair of mounting plates are arranged below the connecting block, a clamping groove is formed between the pair of mounting plates, the polishing head is horizontally placed in the clamping groove for limiting, the mounting plate is tightly fixed on the connecting block through the fastener, the polishing head is clamped by the mounting plate during the process of being fixed on the connecting block by the fastener, and the polishing head is prevented from falling off; meanwhile, the buffering unit is arranged between the mounting plate and the connecting cover, when the polishing head is impacted by the vertical impact load during the process of polishing the die steel, the impact load is transmitted to the buffering unit through the mounting plate, the buffering unit is deformed, the impact load received by the polishing head is absorbed, and the phenomenon that the polishing head is easily damaged due to the rigid contact between the polishing head and the surface of the die steel when the polishing head is impacted by the impact load is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure principle schematic view of the polishing head clamping device for the die steel grinding machine in the embodiments of the present application.

[0021] Figure 2A schematic view of a structure state of the buffering unit in the embodiment of the present application is arranged between the connecting cover and the mounting plate.

[0022] Figure 3 A schematic view of a structure state of the buffering unit in the embodiment of the present application is arranged between the connecting cover and the mounting plate.

[0023] In the drawings:

[0024] 10 - polishing head clamping device; 20 - driving motor; 30 - polishing wheel; 100 - connecting piece; 200 - connecting cover; 300 - shielding plate; 400 - driving shaft; 500 - connecting block; 600 - mounting plate; 700 - fastener; 800 - buffering unit, 801 - connecting shaft, 802 - mounting groove, 803 - bearing, 804 - elastic piece, 805 - elastic spring. DETAILED DESCRIPTION

[0025] The utility model will be further explained in detail in combination with the drawings and specific embodiments of the specification.

[0026] Referring to the drawings Figure 1 to the drawings Figure 2 As shown in the drawings, the embodiment provides a polishing head clamping device 10 for a die steel grinder, which comprises a connecting piece 100, a connecting cover 200, a driving shaft 400, a connecting block 500, a pair of mounting plates 600 and a pair of buffering units 800.

[0027] In the embodiment, the connecting piece 100 is used for being connected with the driving motor 20, one end of the connecting piece 100 is connected with the shell of the driving motor 20, and the other end of the connecting piece 100 is fixedly installed on the connecting cover 200. One end of the driving shaft 400 is connected with the output shaft of the driving motor 20, and the output shaft is driven to rotate by the driving motor 20. The other end of the driving shaft 400 vertically penetrates through the connecting cover 200 and extends downward, and the driving shaft 400 is rotationally connected with the connecting cover 200.

[0028] The connecting block 500 is fixedly installed at the bottom end of the driving shaft 400, and a pair of mounting plates 600 are horizontally and symmetrically arranged below the connecting block 500, and a clamping groove for mounting the polishing wheel 30 is formed between the pair of mounting plates 600, that is, an inner recessed notch is formed at the inner side of each mounting plate 600, and the clamping groove is formed by the pair of notches. The upper end of the polishing wheel 30 is formed with an upwardly protruding connecting head, the connecting head is installed in the notches on the pair of mounting plates 600, and the connecting head is clamped by the clamping groove to prevent the polishing wheel 30 from falling off the mounting plates 600.

[0029] Referring to the drawings Figure 1As shown, a pair of mounting plates 600 are fixedly mounted on both ends of the connecting block 500 by fasteners 700, for example, bolts are used to fixedly mount the connecting plates on the connecting block 500. In the process of locking the mounting plates 600 on the connecting block 500 by bolts, since the connecting head on the grinding wheel 30 is arranged between the connecting block 500 and the mounting plate 600, in the process of gradually fitting the mounting plate 600 with the connecting block 500, the mounting plate 600 also synchronously fits the connecting head with the connecting block 500, and locks the connecting head between the mounting plate 600 and the connecting block 500.

[0030] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown, in the present embodiment, a vertical downward extending shielding plate 300 is arranged around the outer edge of the connecting cover 200, which can be used to shield the dust generated during the grinding process of the die steel. In some embodiments, the shielding plate 300 can be made of silica gel material. The shielding plate 300 made of soft silica gel material will not scratch the surface of the die steel when it is in contact with the die steel.

[0031] Referring to the accompanying drawings Figure 1 As shown, a pair of buffering units 800 are mounted between the bottom end face of the connecting cover 200 and the upper end face of the mounting plate 600, and the pair of buffering units 800 are symmetrically arranged on the left and right ends of the mounting plate 600. The buffering unit 800 is used to offset the vertical impact load received by the grinding head during the grinding process.

[0032] Referring to the accompanying drawings Figure 2 As shown, specifically, the buffering unit 800 includes an elastic member 804, a connecting shaft 801, a bearing 803, and a pair of mounting grooves 802. The pair of mounting grooves 802 are respectively mounted on the bottom end face of the connecting cover 200 and the upper end face of the mounting plate 600, and the grooves of the pair of mounting grooves 802 are arranged in an upward and downward opposite manner. The upper and lower ends of the connecting shaft 801 respectively extend into the pair of mounting grooves 802, but there is a gap between the upper and lower ends of the connecting shaft 801 and the groove bottom of the mounting groove 802. In this way, when the connecting shaft 801 receives a vertical impact load, the connecting shaft 801 can move up and down relative to the mounting groove 802. The function of the connecting shaft 801 is to transmit the vertical impact load received by the grinding head to the connecting cover 200 above, and in the process of transmitting the impact load, the above-mentioned elastic member 804 arranged between the pair of mounting grooves 802 is extruded, so as to offset the vertical impact load applied to the grinding head, and improve the phenomenon that the grinding head is damaged due to sudden impact load.

[0033] The upper and lower ends of the connecting shaft 801 are rotatably installed in the upper and lower installation grooves 802 through bearings 803, and the elastic members 804 are installed between the bearings 803 and the installation grooves 802. Figure 2 As described above, the upper and lower ends of the connecting shaft 801 are provided with shaft shoulders, and the shaft shoulders are in contact with the end faces of the bearings 803, so that the shaft shoulders of the connecting shaft 801 can press the bearings 803 in the axial direction, i.e., prevent the bearings 803 from sliding out of the installation grooves 802. Meanwhile, the elastic members 804 are installed between the bearings 803 and the groove bottoms of the upper and lower installation grooves 802, and the elastic members 804 are pressed and installed at the groove bottoms of the installation grooves 802 by the non-extendable length of the connecting shaft 801. In some embodiments, the elastic members 804 are elastic pressing blocks made of rubber.

[0034] As shown in the accompanying drawings, in order to further improve the buffering effect of the buffering unit 800, the outer circumferential surfaces of the pair of installation grooves 802 are wound with elastic springs 805. Figure 3

[0035] When the polishing head is subjected to an impact load in the vertical direction during polishing of the outer surface of the die steel, the impact load is transmitted to the buffering unit 800 through the installation plate 600, so that the buffering unit 800 is deformed to absorb the impact load received by the polishing head, and the phenomenon that the polishing head is easily damaged due to rigid contact with the surface of the die steel when subjected to the impact load is improved.

[0036] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and equivalent technologies thereof, the present application also intends to include these modifications and variations.​

Claims

1. A grinding head clamping device for a mold steel grinding machine, the grinding head clamping device being connected to a drive motor, characterized in that, include: A connector, one end of which is used to connect to the drive motor; The connecting cover is fixedly connected to the other end of the connector; A drive shaft, the bottom end of which passes vertically through the connecting cover, and the drive shaft and the connecting cover are rotatably connected; A connecting block is fixedly installed at the bottom end of the drive shaft; A pair of mounting plates are arranged opposite each other below the connecting block, and a slot for mounting a grinding head is reserved between the pair of mounting plates. The pair of mounting plates are fixedly mounted on the connecting block. A pair of buffer units are disposed at opposite ends of the connecting cover. The upper end of the buffer unit is connected to the bottom end face of the connecting cover, and the bottom end of the buffer unit is connected to the upper end face of the mounting plate. The buffer unit is used to buffer the vertical load on the mounting plate.

2. The grinding head clamping device for a mold steel grinding machine according to claim 1, characterized in that, The buffer unit includes an elastic element, a connecting shaft, a bearing, and a pair of mounting slots. The pair of mounting slots are respectively disposed on the bottom end face of the connecting cover and the top end face of the mounting plate. The upper end of the connecting shaft is rotatably mounted in the mounting slot located on the connecting cover via the bearing, and the lower end of the connecting shaft is rotatably mounted in the mounting slot located on the mounting plate via the bearing. The elastic element is installed between the bearing and the bottom of the pair of mounting slots.

3. The grinding head clamping device for a mold steel grinding machine according to claim 2, characterized in that, An elastic spring is wound around the outer circumferential surface of one of the mounting slots.

4. A grinding head clamping device for a mold steel grinding machine according to claim 2, characterized in that, The elastic element is an elastic pressure block made of rubber.

5. A grinding head clamping device for a mold steel grinding machine according to claim 1, characterized in that, The connecting cover is surrounded by a vertically downward extending baffle.

6. A grinding head clamping device for a mold steel grinding machine according to claim 5, characterized in that, The shield is made of silicone.

Images