Tool rest facilitating automatic tool changing of grinding machining equipment

Abstract

The utility model relates to a tool rest facilitating automatic tool changing of grinding machining equipment. The tool rest comprises a tool rest base and a tool storage base. The tool rest base is composed of a base part located on the lower portion, a tool storage base installation table located on the upper portion and a middle supporting part. The base part adopts a bottom flat plate structure; the middle supporting part is of a hollow square stand column structure, the tool storage frame mounting table is of an I-shaped steel frame structure, and a lower transverse plate of an I-shaped steel frame is wider than an upper transverse plate. End plates are welded at the two ends of the I-shaped steel frame; a row of supporting cushion blocks which are evenly distributed at intervals are fixedly installed at the positions, close to the left side and the right side, of the upper end of the I-shaped steel frame respectively, and each supporting cushion block position forms a tool storage base installation position. A sensor mounting hole is formed in each supporting cushion block in the left-right direction, and a sensor is mounted in each sensor mounting hole; the upper end of each supporting cushion block is fixedly provided with a tool storage base arranged in an outwards-extending cantilever mode in the left-right direction, so that two rows of tool storage bases arranged in a left-right symmetry mode are formed at the upper end of the tool rest base. The tool rest facilitates tool changing operation and has good applicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to machine tool processing auxiliary equipment, relates to polishing processing auxiliary equipment, especially a tool rest of automatic tool changing convenient for polishing processing equipment. BACKGROUND

[0002] When the automatic polishing processing equipment is used to polish workpieces, the polishing tool wears out quickly and needs to be replaced frequently. In order to facilitate the quick and convenient tool changing of the polishing processing equipment, a tool rest with simple structure and convenient use is needed. However, the existing tool storage structures, such as rack type mechanism, wheel disc type structure and belt type structure, still need to be improved in terms of convenience in use, especially for the frequent tool changing of automatic polishing processing. SUMMARY

[0003] The utility model discloses a tool rest with simple structure and convenient use for automatic tool changing of polishing processing equipment.

[0004] The above-mentioned purpose of the utility model is realized by the following technical scheme:

[0005] A tool rest for automatic tool changing of polishing processing equipment, comprising a tool rest base and a tool storage seat, wherein the tool rest base comprises a base part at the lower part, a tool storage seat mounting table at the upper part and an intermediate support part connecting the upper and lower parts; the base part adopts a bottom flat plate structure; the intermediate support part adopts a hollow square column structure; the tool storage seat mounting table adopts an I-shaped steel frame structure, and the lower horizontal plate of the I-shaped steel frame is wider than the upper horizontal plate; end plates are welded at both ends of the I-shaped steel frame; a row of support pads are fixedly installed at positions close to the left and right sides of the upper end of the I-shaped steel frame, and each support pad forms a tool storage seat mounting position; a sensor mounting hole is arranged in each support pad along the left-right direction, and a sensor is installed in the sensor mounting hole; a tool storage seat is fixedly installed on the upper end of each support pad along the left-right direction, and the tool storage seat is arranged in an outwardly extending cantilever manner, forming two rows of tool storage seats arranged symmetrically on the upper end of the tool rest base.

[0006] Moreover, the tool storage seat adopts a fixed tool storage seat, which adopts an open wrench type structure and is composed of a handle part and an open head part; the fixed tool storage seat is fixedly installed on the upper end of the corresponding support pad through the handle part in a manner that the open head part faces outward along the left-right direction; the open head part adopts an inner hole form with the upper part being larger than the lower part, forming a support table surface, the upper large hole is matched with the annular flange on the tool handle, the lower small hole is used for the part below the annular flange of the tool handle to pass through, and the opening width of the open head part is greater than the diameter of the part of the tool handle below the annular flange.

[0007] Moreover, the tool storage seat adopts a clamp type tool storage seat; the clamp type tool storage seat comprises a clamp base plate, two clamp arms and two rollers; the clamp base plate adopts a structure form with a wide front end and a narrow rear end, an arc-shaped groove is arranged at the middle part of the front end of the clamp base plate, and an arc-shaped boss is arranged at the middle part of the arc-shaped groove in a shape-following mode; pin shaft holes are arranged at the middle parts of the clamp base plate near the two sides, and displacement grooves are arranged at the two sides of the clamp base plate, the pin shaft holes penetrating through the displacement grooves; a guide spring post is vertically fixed at each side of the rear end of the clamp arm; the two clamp arms adopt the same structure form, the front end of the clamp arm is provided with a roller mounting groove, wheel shaft mounting holes are arranged above and below the roller mounting groove, a pin shaft hole is arranged at the middle part of the clamp arm, and a guide spring post is vertically mounted at the rear end side of the clamp arm; the two rollers are mounted on the roller mounting grooves of the two clamp arms through respective wheel shafts, and form two clamp arm assemblies; the two clamp arm assemblies are arranged at the two sides of the clamp base plate in a symmetrical mode, the pin shaft holes on the two clamp arms are aligned with the pin shaft holes on the corresponding sides of the clamp base plate, and a pin shaft is arranged to enable the clamp arm assembly and the clamp base plate to be relatively rotatable; the two rollers and the arc-shaped boss at the front end of the clamp base plate are arranged at the same height, and the three form a support jaw that can be embedded and matched with the annular groove on the tool handle; the guide posts on the two clamp arms are oppositely arranged at the two sides of the rear end of the clamp base plate, and a compression spring is arranged on the guide spring post of each clamp arm and the corresponding guide spring post of the clamp base plate.

[0008] Moreover, the tool storage seat adopts a clamp type tool storage seat; the clamp type tool storage seat comprises a clamp base plate, two clamp arms and two rollers; the clamp base plate adopts a structure form with a wide front end and a narrow rear end, an arc-shaped groove is arranged at the middle part of the front end of the clamp base plate, and an arc-shaped boss is arranged at the middle part of the arc-shaped groove in a shape-following mode; pin shaft holes are arranged at the middle parts of the clamp base plate near the two sides, and displacement grooves are arranged at the two sides of the clamp base plate, the pin shaft holes penetrating through the displacement grooves; a guide spring post is vertically fixed at each side of the rear end of the clamp arm; the two clamp arms adopt the same structure form, the front end of the clamp arm is provided with a roller mounting groove, wheel shaft mounting holes are arranged above and below the roller mounting groove, a pin shaft hole is arranged at the middle part of the clamp arm, and a guide spring post is vertically mounted at the rear end side of the clamp arm; the two rollers are mounted on the roller mounting grooves of the two clamp arms through respective wheel shafts, and form two clamp arm assemblies; the two clamp arm assemblies are arranged at the two sides of the clamp base plate in a symmetrical mode, the pin shaft holes on the two clamp arms are aligned with the pin shaft holes on the corresponding sides of the clamp base plate, and a pin shaft is arranged to enable the clamp arm assembly and the clamp base plate to be relatively rotatable; the two rollers and the arc-shaped boss at the front end of the clamp base plate are arranged at the same height, and the three form a support jaw that can be embedded and matched with the annular groove on the tool handle; the guide posts on the two clamp arms are oppositely arranged at the two sides of the rear end of the clamp base plate, and a compression spring is arranged on the guide spring post of each clamp arm and the corresponding guide spring post of the clamp base plate.

[0009] The utility model has the advantages and positive effects:

[0010] 1. The utility model discloses a clamp type tool storage seat, which is arranged on the upper part of the tool holder seat and comprises a clamp base plate, two clamp arms and two rollers.

[0011] 2. The utility model discloses a sensor arranged on each support pad under the tool storage seat, which can detect whether there is a tool at the position through the sensor, so that the mechanical hand of the polishing equipment can quickly and accurately complete the tool changing operation.

[0012] 3、The utility model discloses the configuration has the open wrench type and the clamp type two forms'store the seat of the knife, can carry out nimble selection to different tool forms, has reached better applicability.

[0013] 4、The utility model discloses through two knife rest covers and respective knife rest cover opening and closing mechanisms, can realize closing the knife rest cover when not using, realizes the protection to the tool.

[0014] 5、The utility model discloses simple whole structure, reasonable, and small floor space. DRAWINGS

[0015] Figure 1a It is the overall appearance perspective of the utility model;

[0016] Figure 1b It is the overall appearance front view of the utility model;

[0017] Figure 1c It is the overall appearance side view of the utility model;

[0018] Figure 2a It is the structure schematic diagram of the utility model's two side knife rest cover removal and having the tool;

[0019] Figure 2b It is the structure schematic diagram of the utility model's two side knife rest cover removal and not having the tool;

[0020] Figure 2c It is Figure 2b The local enlarged view of A in the middle;

[0021] Figure 3 It is the structure schematic diagram of the first embodiment of the utility model's store the seat;

[0022] Figure 4 It is the structure schematic diagram of the tool of the utility model's storage with the first embodiment store the seat;

[0023] Figure 5a It is the structure schematic diagram 1 of the second embodiment of the utility model's store the seat;

[0024] Figure 5b It is the structure schematic diagram 2 of the second embodiment of the utility model's store the seat;

[0025] Figure 6 It is the structure schematic diagram of the tool of the utility model's storage with the second embodiment store the seat. DETAILED DESCRIPTION

[0026] The structure of the utility model is further explained below in combination with the drawings and through embodiments. It should be noted that the embodiment is narrative, and is not limiting.

[0027] A tool holder for facilitating automatic tool changing of a grinding processing equipment, please see Figure 1- Figure 6 The invention point is: including tool holder seat 2, tool storage seat, tool holder cover 1.

[0028] The tool holder seat is used for installing the tool storage seat and the tool holder cover. The tool holder seat is preferably composed of a base part 2.3 located at the lower part, a tool storage seat mounting table 2.1 located at the upper part, and a middle support part 2.2 connecting the upper and lower parts. The base part adopts a bottom flat plate structure and contacts the ground. The middle support part adopts a hollow square column structure, and the tool storage seat mounting table adopts an I-shaped steel frame structure. The lower horizontal plate of the I-shaped steel frame is wider than the upper horizontal plate. End plates are welded at both ends of the I-shaped steel frame. A row of support pads 6 uniformly distributed according to a set spacing are fixedly installed at positions close to the left and right sides of the upper end of the I-shaped steel frame. Each support pad forms a tool storage seat mounting position and can install a tool storage seat. In addition, a sensor mounting hole 6.1 is provided on each support pad, and a sensor is installed in the sensor mounting hole along the left-right direction to detect whether there is a tool in the corresponding tool storage seat.

[0029] The tool storage seat is used for vertical storage of grinding tools. A tool storage seat is fixedly installed at the upper end of each support pad and is arranged in an outward cantilevered manner along the left-right direction. According to the specific structure of the tool, the tool storage seat can adopt two forms of fixed type or openable and closable clamp type, specifically:

[0030] 1. For tools with a ring-shaped flange in the middle of the tool handle, a fixed tool storage seat 3 can be used. The fixed tool storage seat adopts an open wrench type structure and is composed of a handle part and an open head part. The fixed tool storage seat is fixedly installed on the upper end of the corresponding support pad through its handle part with the open head part facing outward along the left-right direction. The open head part adopts an inner hole form with the upper part being larger than the lower part, forming a support table 3.1. The upper large hole cooperates with the ring-shaped flange on the tool handle, and the lower small hole is used for the part below the ring-shaped flange of the tool handle to pass through. In addition, the opening 3.2 of the open head part needs to be wider than the diameter of the part of the tool handle below the ring-shaped flange to realize that the tool can be taken out through the opening part.

[0031] When the fixed tool storage seat is used in the automatic grinding equipment, the grinding robot drives the tool to be replaced (worn tool or another tool to be replaced) to the outside of one of the tool storage seats without a tool, and the tool handle flange below the tool handle is aligned with the opening head of the tool storage seat. Then the tool is moved horizontally through the opening into the opening head. When the tool handle is completely moved into the opening head, the robot drives the tool downward, so that the lower end surface of the annular flange of the tool is in contact with the support table. Then the tool is released to achieve the storage of the tool. Then the robot moves to a position above a usable tool, and first clamps the upper end of the tool handle. Then the tool is lifted, so that the annular flange part of the tool is moved above the tool storage seat, and then the tool is moved out through the opening of the tool storage seat along the horizontal direction, and the whole tool replacement process is completed.

[0032] 2. For the tool with an annular groove in the middle of the tool handle, a clamp type tool storage seat 7 can be used. The clamp type tool storage seat comprises a clamp seat plate 7.1, two clamp arms 7.2 and two rollers 7.3, and the two rollers can be bearings. The clamp seat plate has a structure with a wide front end and a narrow rear end, and an arc-shaped groove is arranged in the middle of the front end of the clamp seat plate. An arc-shaped boss 7.1.1 is arranged in the middle of the arc-shaped groove. Pin shaft holes are arranged in the middle of the two sides of the clamp seat plate, and displacement slots are arranged on the two sides of the clamp seat plate, so that the two front arms can be embedded and installed. The pin shaft holes penetrate the displacement slots. A guide spring post is vertically fixed on the two sides of the rear end of the clamp arm. The two clamp arms have the same structure. A roller installation slot is arranged at the front end of the clamp arm, wheel shaft installation holes are arranged above and below the roller installation slot, a pin shaft hole is arranged in the middle of the clamp arm, and a guide spring post is vertically installed on the side of the rear end of the clamp arm. The two rollers are installed on the roller installation slots of the two clamp arms through the respective wheel shafts, forming two clamp arm assemblies. The two clamp arm assemblies are arranged in a symmetrical manner on the two sides of the clamp seat plate. The pin shaft holes of the two clamp arms are aligned with the pin shaft holes on the corresponding sides of the clamp seat plate, and a pin shaft is arranged to enable the relative rotation of the clamp arm assembly and the clamp seat. The two rollers and the arc-shaped boss at the front end of the clamp seat plate are arranged at the same height, and they form a support jaw that can be embedded and matched with the annular groove on the tool handle. The guide posts on the two clamp arms are oppositely arranged on the two sides of the rear end of the clamp seat plate, and a compression spring 7.4 is arranged on the guide spring post of each clamp arm and the corresponding guide spring post of the clamp seat plate. To facilitate the installation of the clamp type tool storage seat on the support pad block, a groove 7.1.2 can be arranged on the bottom surface of the clamp seat plate. The groove is matched with the support pad block, and the clamp seat plate is fixed on the support pad block through screws. When the clamp type tool storage seat is installed on the support pad block, the support jaw is arranged outward.

[0033] When the clamp type tool storage seat is used in an automatic grinding device, the grinding manipulator drives the tool (worn tool or tool to be replaced) to be replaced to the outside of one tool storage seat without a tool, and the annular groove on the tool handle is aligned with the support jaw, at this time, the two rollers are in close position; the manipulator drives the tool to pass between the two rollers in horizontal direction, the handle contacts with the two rollers, the support jaw is gradually opened, and when the middle surface of the handle passes between the two rollers, the support jaw is gradually reduced under the action of the two side springs, when the annular groove on the handle is completely embedded with the two rollers and the arc-shaped convex platform at the front end of the clamping seat plate, the handle is firmly clamped in the support jaw, at this time, the tool can be released, and the tool storage is realized; then the manipulator moves to the position above the available tool, and first clamps the upper end of the tool handle; then the tool is moved out of the tool storage seat along the horizontal direction between the two rollers, and in the process of moving out of the tool, the support jaw is first gradually opened and then gradually closed, and when the tool is completely moved out of the support jaw, the whole tool replacement process is completed.

[0034] The two tool holder covers are symmetrically arranged at the upper ends of the two sides of the tool holder seat, and the lower ends of the two tool holder covers are connected to the positions close to the left and right ends of the lower transverse plate of the tool holder mounting table through hinges. When the two tool holder covers are opened, the upper ends of the two tool holder covers are flush, and the two rows of stored tools are hidden in the corresponding tool holder covers. In order to facilitate the opening and closing of the tool holder cover, the tool holder cover opening and closing mechanism is further arranged, and the tool holder cover opening and closing mechanism is a cylinder. Two cylinders are arranged on the front and rear sides of the middle supporting part of the tool holder seat, and the cylinder rod ends of the two cylinders are hingedly connected to the positions close to the outer sides of the lower ends of the two tool holder covers. When the cylinder rod is retracted, the two tool holder covers are turned out along the center axis of the hinge to be opened. When the cylinder rod is extended, the two tool holder covers are turned in along the center axis of the hinge to be closed.

[0035] In actual use, according to the tool conditions of the automatic grinding machining equipment to be matched, the two rows of tool storage seats can all adopt a fixed structure, or all adopt a clamp type structure, or one row adopts a fixed structure and the other row adopts a clamp type structure, etc.

[0036] Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, therefore, the scope of the utility model is not limited to the disclosed contents of the embodiments and drawings.

Claims

1. A tool holder for facilitating automatic tool change in a grinding machine, characterized in that: The tool holder seat comprises a base, a tool storage seat, and a middle support part connecting the upper and lower parts; the base adopts a bottom flat plate structure; the middle support part adopts a hollow square column structure, and the tool storage seat mounting table adopts an I-shaped steel frame structure, and the lower transverse plate of the I-shaped steel frame is wider than the upper transverse plate; end plates are welded at both ends of the I-shaped steel frame; a row of support pads are fixedly installed at positions close to the left and right sides of the upper end of the I-shaped steel frame, and each support pad forms a tool storage seat installation position; a sensor mounting hole is arranged in each support pad along the left-right direction, and a sensor is installed in the sensor mounting hole; a tool storage seat is fixedly installed on the upper end of each support pad along the left-right direction, and the tool storage seat is arranged in an outwardly extending cantilever manner, and two rows of tool storage seats are symmetrically arranged on the upper end of the tool holder seat.

2. The tool holder for facilitating automatic tool change of a grinding machine according to claim 1, wherein: The tool storage seat adopts a fixed tool storage seat, which adopts an open wrench type structure and is composed of a handle part and an open head part; the fixed tool storage seat is fixedly installed on the upper end of the corresponding support pad through the handle part in the left-right direction with the open head part facing outward; The open head part adopts an inner hole form with the upper part being larger than the lower part, forms a support table, the upper large hole is matched with the annular flange on the tool handle, the lower small hole is passed through the part below the annular flange of the tool handle, and the opening width of the open head part is larger than the diameter of the part of the tool handle below the annular flange.

3. The tool holder for facilitating automatic tool change of a grinding machine according to claim 1, wherein: The tool storage seat adopts a clamp type tool storage seat; the clamp type tool storage seat comprises a clamp seat plate, two clamp arms, and two rollers; the clamp seat plate adopts a structure form with the front end part being wide and the rear end part being narrow, an arc-shaped groove is arranged at the middle part of the front end of the clamp seat plate, and an arc-shaped boss is arranged in the middle part of the arc-shaped groove; pin shaft holes are arranged at the middle part of the clamp seat plate close to the two sides, and displacement slots are arranged at the two sides of the clamp seat plate, the pin shaft holes penetrate the displacement slots; an outwardly extending guide spring column is vertically fixed at the rear end part of each of the two clamp arms; the two clamp arms adopt the same structure form, a roller mounting slot is arranged at the front end of the clamp arm, wheel shaft mounting holes are arranged through the upper and lower parts of the roller mounting slot, a pin shaft hole is arranged at the middle part of the clamp arm, and a guide spring column is vertically installed at the rear end side of the clamp arm; the two rollers are installed in the roller mounting slots on the two clamp arms through the respective wheel shafts, and form two clamp arm assemblies; the two clamp arm assemblies are symmetrically arranged at the two sides of the clamp seat plate, the pin shaft holes on the two clamp arms are aligned with the pin shaft holes on the corresponding sides of the clamp seat plate, and a pin shaft is arranged to make the clamp arm assemblies and the clamp seat form a relatively rotatable connection; the two rollers and the arc-shaped boss at the front end of the clamp seat plate are arranged at the same height, and the three form a support jaw which can be embedded and matched with the annular groove on the tool handle; the guide columns on the two clamp arms are oppositely arranged at the two sides of the rear end of the clamp seat plate, and a compression spring is installed on the guide spring column on the corresponding side of the clamp seat plate.

4. The tool holder for facilitating automatic tool change of a grinding machine according to claim 1, wherein: Also include the tool rest cover and tool rest cover open and close mechanism; The tool rest cover is two; Two tool rest covers are symmetrically arranged on both sides of the upper end of the tool rest seat, and the lower end of the two tool rest covers is close to the position of the lower transverse plate of the tool rest mounting table close to the left and right ends through the hinge connection; The tool rest cover opening and closing mechanism adopts a pneumatic cylinder, two pneumatic cylinders are installed on the front and back of the middle support part of the tool rest seat, and the cylinder rod end of the two pneumatic cylinders is hinged with the lower end of the two tool rest covers close to the outer side; When the cylinder rod of the pneumatic cylinder is retracted, the two tool rest covers are turned out along the center axis of the hinge, and the opening is realized; When the cylinder rod of the pneumatic cylinder is extended, the two tool rest covers are turned in along the center axis of the hinge, the upper ends of the two tool rest covers are flush, the closing is realized, and the two rows of stored tools are hidden in the corresponding side tool rest cover.

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