CN110465841B - An automatic inner hole grinding machine for machining - Google Patents

Abstract

The invention relates to an automatic inner hole grinding machine for machining, which comprises a first workbench, a clamping device, a second workbench, a grinding group and an adjusting device, wherein the clamping device is fixedly arranged at the upper end of the first workbench, the grinding group is uniformly arranged at the upper end of the second workbench, the adjusting device is arranged at the rear end of the grinding group, the clamping device comprises a cylindrical frame, a rotating frame, a large ball and a clamping frame, the grinding group comprises three grinding devices, the grinding devices comprise a motor, a telescopic rod, a small conical block, a conical frame, a plane grinding frame, a containing box and a vertical grinding block, the plate is clamped through the clamping device, the grinding devices are moved upwards to be in contact with the plate by adjusting the second workbench, the telescopic rod is adjusted so that the small conical block moves upwards, the diameter of the conical frame is changed until the vertical grinding block is in contact with the inner wall of an inner hole of the plate, the inner hole of the, the plate is turned over, and the first polishing is repeated for the second polishing.

Description

An automatic inner hole grinding machine for machining

technical field

The invention relates to the field of workpiece processing, in particular to an automatic inner hole grinding machine for mechanical processing.

Background technique

The inner hole grinder is a workpiece processing equipment. The inner hole grinder is mainly used to grind the cylindrical inner hole surface and its end face. With the development of society, the quality requirements of the inner hole surface of the workpiece are getting higher and higher. Grinders are used more and more widely.

When grinding the inner hole, due to the structural limitation of the inner hole grinding machine, one inner hole grinding machine can only grind one inner hole at a time during processing. In the actual operation process, there are the following problems:

(1) The traditional inner hole grinder can only grind one inner hole at a time. When there are many inner holes in the workpiece, the grinding device needs to be moved many times, resulting in low efficiency of the inner hole grinder and small processing volume, which affects the subsequent processing and manufacturing. , it is difficult to meet the needs of today's society.

(2) When the traditional inner hole grinder grinds the inner hole, the inner side of the hole and the upper and lower ends of the hole are separately ground, which not only reduces the work efficiency, but also affects the quality of the previous grinding during the grinding process and makes the hole grinding incomplete. .

(3) The traditional inner hole grinder needs to deal with the debris generated after grinding, and the debris is not easy to clean up, and the remaining debris is easy to corrode the inner hole grinder and affect the service life of the inner hole grinder.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention provides an automatic inner hole grinding machine for machining.

The technical problem to be solved by the present invention is realized by adopting the following technical solutions: an automatic inner hole grinding machine for machining, including a worktable, a clamping device, a worktable two, a grinding group and an adjustment device, and the worktable one is an L A clamping device is fixedly installed on the upper end face of the right side of the worktable 1, a worktable 2 is fixedly installed on the upper end face of the left side of the worktable 1, a grinding group is evenly installed on the upper end of the worktable 2, and an adjusting device is installed at the rear end of the grinding group ;in:

The clamping device includes a cylindrical frame, a rotating frame, a large ball and a clamping frame. A cylindrical frame is fixedly installed on the upper end of the worktable. A circular arc groove is opened in the cylindrical frame, and the circular arc groove is slidingly fitted with the groove. The rotating frame is connected to each other. The right end of the rotating frame is provided with a rotating handle. The upper end of the rotating frame is provided with a small arc-shaped groove. A large ball is installed in the small arc-shaped groove through a pin shaft. The left end of the rotating frame is fixedly installed with a clamping frame. The frame is a right-angle plate with a telescopic frame installed on the front, rear and right ends, and a hydraulic cylinder is installed on the telescopic frame; the plate is clamped and fixed by the clamping frame, the inner hole of the plate is polished by the grinding device, and the clamping is controlled by rotating the rotating frame. The holder turns the plate over, and grinds the inner hole of the plate again to achieve the purpose of completely grinding the inner hole of the plate. The large ball is used to reduce the friction between the cylindrical frame and the rotating frame, thereby saving the turning force.

The grinding group has three grinding devices. The grinding device includes a motor, a telescopic rod, a small cone block, a cone frame, a plane grinding frame, a storage box and a vertical grinding block. The upper end of the second worktable is fixedly installed with a motor, and the output shaft of the motor passes through. A telescopic rod is installed on the coupling, and a small conical block is fixedly installed at the end of the telescopic rod. The small conical block is connected with the conical frame through balls. Box, the upper end of the plane grinding frame is evenly connected with the three vertical grinding blocks by sliding fit; adjust the telescopic rod to move the small cone block up and down, thereby changing the diameter of the cone frame, so that the diameter of the vertical grinding block is the same as the inner diameter of the plate. The diameter of the hole is the same, and the diameter of the vertical grinding block can be adjusted with the diameter of the inner hole, so as to achieve the purpose of improving the use range of the inner hole grinding machine.

As a preferred technical solution of the present invention, the second workbench includes a telescopic frame, a sliding rail and a small moving block, a telescopic frame is fixedly installed on the upper end face of the left side of the workbench 1, and a sliding rail is fixedly installed at the upper end of the telescopic frame , There are three small moving blocks. The slide rail is connected with the small moving blocks on the left and right sides by sliding fit. A small moving block is fixedly installed in the middle of the slide rail. The upper end of the small moving block is fixedly connected with the lower end of the motor. The lower end of the block is provided with a rectangular groove, the small ball is installed in the rectangular groove through the pin shaft, and the hydraulic cylinder is installed in the telescopic frame; the position of the grinding device is adjusted by controlling the telescopic frame, so that the grinding device can carry out the operation of the plate. When the plate is turned over, the sanding device is moved to the lowest position through the retractable frame to prevent the sanding device from interfering with the turned plate, and the friction between the slide rail and the small moving block is reduced by the small ball.

As a preferred technical solution of the present invention, the adjusting device includes a first long plate, a second long plate and a groove plate, and the rear ends of the telescopic rods on the left and right sides are slidingly fitted with the first and second long plates, respectively. One end of the two strips is connected, the other end of the strip one and the two strips are connected by rivets, a groove plate is fixedly installed at the rear end of the telescopic rod in the middle, and a groove is opened in the middle of the groove plate, and the long strip is installed. The lower end of the other end of the second plate is connected with the groove in a sliding fit; when the distance between the inner holes changes, the distance between the grinding devices on the left and right sides is adjusted by pushing the long plate one and the long plate two, so as to increase the The purpose of the scope of application of the inner hole grinder.

As a preferred technical solution of the present invention, the cone frame includes a cone truncated block, a connecting bracket, an arc-shaped push block and a rubber ball, and the outer side of the small cone block is connected with the cone truncated block in a sliding fit. The rear end of the block is provided with a groove, and the surface of the cone truncated block is evenly provided with three connecting brackets along the circumferential direction. The end of the connecting bracket is fixedly installed with an arc-shaped push block, and a groove is formed in the arc-shaped push block. Rubber ball; when the vertical position of the small cone block is changed by the telescopic rod, the diameter of the cone block is changed, thereby driving the connecting bracket and the arc push block to move in the horizontal direction, and finally driving the vertical grinding block to move in the horizontal direction When the vertical module is squeezed by the inner hole, the rubber ball will give the vertical module a certain reaction force, reduce the wear degree inside the vertical module and increase the Service life of vertical modules.

As a preferred technical solution of the present invention, the plane grinding frame includes a circular ring plate, a grinding tool and a sliding track, the lower end of the cone truncated block is connected with the circular ring plate by sliding fit, and the inner surface of the circular ring plate is uniform along the circumferential direction. There are three grinding tools clamped, and a sliding track is installed in the ring plate just below the vertical grinding block; the vertical grinding block moves in the horizontal direction through the sliding track, and the sliding track can reduce the friction force of the vertical grinding block during the moving process. The abrasive tool grinds the upper and lower end faces of the plate. When the abrasive tool is worn, it can be replaced only by the buckle.

As a preferred technical solution of the present invention, the storage box includes a storage rack, an arc-shaped buckle, a rectangular buckle and a film, a storage rack is installed at the lower end of the annular plate through the buckle, and the outer side of the storage rack is installed through an arc-shaped buckle There is a film, the inner side of the storage rack is installed with a film through a rectangular buckle, the film is divided into two semi-circular rings on the left and right, and the two semi-circular rings on the left and right are connected by the buckle; For disassembly and installation, when the film accumulates enough debris, it can be processed directly after disassembly, further avoiding the damage of debris to the grinding machine, and the price of the film is cheap, and the cost of multiple replacements is low.

As a preferred technical solution of the present invention, the vertical grinding block includes a sliding block, an arc-shaped long block, a rectangular grinding block and a rubber ball, and the sliding track is connected with the sliding block in a sliding fit manner. The rectangular block of the cylinder, the front and rear ends of the rectangular block are provided with rectangular grooves, the balls are installed in the rectangular grooves through the pins, the upper end of the slider is fixedly installed with an arc-shaped long block, and the outer side of the arc-shaped long block is evenly installed with inclined rectangular grinding wheels. The lower end of the rectangular grinding block is evenly connected to the rubber ball with a small bracket in a sliding fit, and the end of the small bracket is installed on the outside of the arc-shaped long block; the inclined rectangular grinding block is compared with the horizontal rectangular grinding block. When grinding the inner hole, the contact area is large, and it is not easy to have a grinding dead angle. Compared with the horizontal friction force of the vertical rectangular grinding block, the rubber ball gives the rectangular grinding block a reaction force to prevent the grinding block from grinding. During the process, it is skewed due to friction.

As a preferred technical solution of the present invention, the two end surfaces of the vertical grinding block are concave arc surfaces, and the concave arc surfaces are evenly provided with semicircular grooves and convex arc grooves; The chips enter the arc-shaped groove through the semi-circular groove, and finally fall into the storage box through the concave arc-shaped face.

Compared with the prior art, the present invention has the following advantages:

1. A kind of mechanical processing automatic inner hole grinding machine provided by the present invention, using the grinding device, the inner wall of the inner hole of the plate and the upper and lower end surfaces can be completely ground with only two grindings, and each grinding will not affect the previous grinding. Quality, because the inner wall of the inner hole is polished every time, which further improves the quality of polishing, and the polishing diameter of the polishing device can be adjusted, so that the inner hole grinding machine can be adjusted during use, so that the polishing device can be smoothly moved in and out hole, and the diameter range of the inner hole for grinding is large.

2. The present invention can change the diameter of the conical frame in the horizontal direction only by adjusting the vertical position of the small conical block by setting the small conical block and the conical frame, thereby changing the relationship between the vertical modules. The distance between the inner hole grinders can be adjusted during use, so that the grinding device can enter and exit the inner hole smoothly, and the applicable range of the inner hole grinder is increased.

3. The present invention utilizes the combination of the inclined grinding block and the rubber ball through the vertical grinding block provided. Compared with the grinding block installed vertically and horizontally, the inclined grinding block has a larger contact area when grinding the inner hole of the plate. It is not easy to have a dead angle of grinding, and the friction force in the horizontal direction is small during the grinding process, and the rubber ball gives the grinding block a reaction force to prevent the grinding block from being skewed due to friction during the grinding process.

4. Compared with other materials, the film has the advantages of low price and certain elasticity through the storage box provided in the present invention. Therefore, the film is used to collect debris, which can be thrown away after use, which can prevent the uncleaned debris from affecting the inner hole grinder. Corrosion is carried out to improve the service life of the inner hole grinder.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the plane structure schematic diagram of the present invention;

Fig. 2 is the plane structure schematic diagram of the workbench 1 and the clamping device of the present invention;

Fig. 3 is the plane structure schematic diagram of the adjusting device of the present invention;

Fig. 4 is the top plan structure schematic diagram of the grinding device of the present invention;

Fig. 5 is the cross-sectional plan structure schematic diagram of the grinding device of the present invention;

Fig. 6 is the plane structure schematic diagram of the vertical grinding block of the present invention;

FIG. 7 is a schematic plan view of the slider and the sliding track of the present invention.

Detailed ways

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to FIG. 1 to FIG. 7 .

An automatic inner hole grinding machine for machining, comprising a workbench 1, a clamping device 2, a workbench 2 3, a grinding group 4 and an adjustment device 5, the workbench 1 is an L-shaped plate, and the workbench 1 is an L-shaped plate. 1. A clamping device 2 is fixedly installed on the upper end face of the right side, a worktable 2 3 is fixedly installed on the upper end face of the worktable 1 1, a grinding group 4 is evenly installed on the upper end of the worktable 23, and an adjusting device is installed at the rear end of the grinding group 4. 5; where:

The clamping device 2 includes a cylindrical frame 21, a rotating frame 22, a large ball 23 and a clamping frame 24. A cylindrical frame 21 is fixedly installed on the upper end of the workbench 1. The cylindrical frame 21 is provided with a circular arc groove. The groove is connected with the rotating frame 22 in a sliding manner, the right end of the rotating frame 22 is provided with a rotating handle, the upper end of the rotating frame 22 is provided with a small arc-shaped groove, and a large ball 23 is installed in the small arc-shaped groove through a pin shaft. The left end of the rotating frame 22 is fixedly installed with a clamping frame 24, the clamping frame 24 is a right-angle plate with a telescopic frame installed at the front, rear and right ends, and a hydraulic cylinder is installed on the telescopic frame; the plate is clamped and fixed by the clamping frame 24, and after grinding The device 41 grinds the inner hole of the plate, controls the clamping frame 24 to turn the plate by rotating the rotating frame 22, and grinds the inner hole of the plate again, so as to achieve the purpose of completely grinding the inner hole of the plate. The large balls 23 reduce the friction force between the cylindrical frame 21 and the rotating frame 22, thereby saving the rotational force.

The grinding group 4 has three grinding devices 41. The grinding device 41 includes a motor 411, a telescopic rod 412, a small cone block 413, a cone frame 414, a plane grinding frame 415, a storage box 416 and a vertical grinding block 417. 3. The motor 411 is fixedly installed on the upper end, the output shaft of the motor 411 is installed with a telescopic rod 412 through the coupling, the end of the telescopic rod 412 is fixedly installed with a small cone block 413, and the small cone block 413 is connected with the cone frame 414 through balls, A flat grinding frame 415 is installed on the lower end of the conical frame 414, a receiving box 416 is clamped at the lower end of the flat grinding frame 415, and the upper end of the flat grinding frame 415 is evenly connected with the three vertical grinding blocks 417 by sliding fit;

The cone frame 414 includes a cone truncated block 4141, a connecting bracket 4142, an arc-shaped push block 4143 and a rubber ball 4144. The outer side of the small cone block 413 is connected to the cone truncated block 4141 by sliding fit. There is a groove at the end, and three connecting brackets 4142 are evenly arranged on the surface of the cone truncated block 4141 along the circumferential direction. The end of the connecting bracket 4142 is fixedly installed with an arc-shaped push block 4143. A groove is opened in the arc-shaped push block 4143, and a pin passes through the groove. The shaft is installed with rubber balls 4144;

The plane grinding frame 415 includes a circular ring plate 4151, a grinding tool 4152 and a sliding track 4153. The lower end of the cone truncated block 4141 is connected with the circular ring plate 4151 in a sliding fit manner. A grinding tool 4152, a sliding track 4153 is installed in the ring plate 4151 just below the vertical grinding block 417;

The storage box 416 includes a storage rack 4161, an arc buckle 4162, a rectangular buckle 4163 and a film 4164. A storage rack 4161 is installed at the lower end of the annular plate 4151 through the buckle, and the outer side of the storage rack 4161 is installed with an arc buckle 4162. The film 4164, the inner side of the storage rack 4161 is installed with the film 4164 through the rectangular buckle 4163, the film 4164 is divided into two semicircular rings on the left and right, and the two semicircular rings on the left and right are connected by the buckle;

The vertical grinding block 417 includes a sliding block 4171, an arc-shaped long block 4172, a rectangular grinding block 4173 and a rubber ball 4174. The sliding track 4153 is connected with the sliding block 4171 in a sliding fit manner. Rectangular block, rectangular grooves are formed at the front and rear ends of the rectangular block, balls are installed in the rectangular grooves through the pins, the upper end of the slider 4171 is fixedly installed with an arc-shaped long block 4172, and the outer side of the arc-shaped long block 4172 is evenly installed with inclined rectangular blocks Grinding block 4173, the lower end of the rectangular grinding block 4173 is evenly connected with the rubber ball 4174 with a small bracket in a sliding fit, and the end of the small bracket is installed on the outer side of the arc-shaped long block 4172;

The two end surfaces of the vertical grinding block 417 are concave arc surfaces, and the concave arc surfaces are evenly provided with semicircular grooves and convex arc grooves;

Adjust the telescopic rod 412 to move the small conical block 413 up and down, thereby changing the diameter of the conical frame 414, so that the diameter of the vertical grinding block 417 is consistent with the diameter of the inner hole of the plate, and the diameter of the vertical grinding block 417 can be adjusted according to the diameter of the inner hole. Adjustment to achieve the purpose of improving the use range of the inner hole grinder;

When the vertical position of the small cone block 413 is changed by the telescopic rod 412, the diameter of the cone block 4141 is changed, thereby driving the connecting bracket 4142 and the arc push block 4143 to move in the horizontal direction, and finally driving the vertical grinding block 417 Move in the horizontal direction, and finally make the diameter between the vertical grinding blocks 417 meet the requirements of the diameter of the inner hole. When the vertical module is squeezed by the inner hole, the rubber ball 4144 gives the vertical module a certain reaction force and reduces the inner side of the vertical module. The degree of wear and tear increases the service life of the vertical module.

The vertical grinding block 417 moves in the horizontal direction through the sliding track 4153. The sliding track 4153 can reduce the frictional force of the vertical grinding block 417 during the moving process. The grinding wheel 4152 grinds the upper and lower end surfaces of the plate. , it can be replaced only by the buckle.

The film 4164 can be quickly disassembled and installed through the arc buckle 4162 and the rectangular buckle 4163. When the film 4164 accumulates enough debris, it can be processed directly after disassembly to further avoid the damage to the grinding machine by the debris, and the film 4164 The price is cheap and the cost of performing multiple replacements is low.

Compared with the horizontal rectangular grinding block 4173, the inclined rectangular grinding block 4173 has a larger contact area when grinding the inner hole of the plate, and it is not easy to have a grinding dead angle. Compared with the vertical rectangular grinding block 4173, the friction force in the horizontal direction is affected. Small, the rubber ball 4174 gives a reaction force to the rectangular grinding block 4173 to prevent the grinding block 4173 from skewing due to friction during the grinding process;

The polished chips enter the arc-shaped groove through the semi-circular groove, and finally fall into the storage box 416 through the concave arc-shaped surface.

The workbench 2 3 includes a telescopic frame 31, a slide rail 32 and a small moving block 33. A telescopic frame 31 is fixedly installed on the upper end face of the left side of the workbench 1 1, and a slide rail 32 is fixedly installed on the upper end of the telescopic frame 31. There are three moving blocks 33 , the slide rail 32 is connected with the small moving blocks 33 on the left and right sides in a sliding fit manner, a small moving block 33 is fixedly installed in the middle of the sliding rail 32 , and the upper end of the small moving block 33 is connected with the lower end of the motor 411 . Fixed connection, the lower end of the small moving block 33 is provided with a rectangular groove, the small ball is installed in the rectangular groove through the pin, the hydraulic cylinder is installed in the telescopic frame 31; the position of the grinding device 41 is adjusted by controlling the telescopic frame 31 , so that the grinding device 41 can grind the plate, and when the plate is turned over, the grinding device 41 is moved to the lowest level through the retractable frame 31 to prevent the grinding device 41 from interfering with the turned plate, and the small ball is used to lower the The frictional force between the slide rail 32 and the small moving block 33 .

The adjusting device 5 includes a first long plate 51, a second long plate 52 and a groove plate 53. The rear ends of the telescopic rods 412 on the left and right sides are in sliding fit with the first long plate 51 and the second long plate 52 respectively. One end of the long strip 51 and the other end of the long strip 52 are connected by rivets, the rear end of the middle telescopic rod 412 is fixedly installed with a groove plate 53, and the middle of the groove plate 53 is provided with a groove, The lower end of the other end of the second long strip 52 is connected with the groove in a sliding fit; when the distance between the inner holes changes, the distance between the grinding devices 41 on the left and right sides is adjusted by pushing the first long strip 51 and the second long strip 52 distance, in order to achieve the purpose of increasing the scope of application of the inner hole grinder.

During specific work, the plate is clamped by the clamping device 2 , the retractable frame 31 in the workbench 2 3 is adjusted to move the grinding device 41 upward until the plane grinding frame 415 contacts the plate, and the telescopic rod 412 is adjusted to make the The small conical block 413 moves upward to adjust the diameter of the conical frame 414 until the vertical grinding block 417 contacts the inner wall of the inner hole of the plate, and the flat grinding frame 415 and the vertical grinding block 417 are driven by the motor 411 to carry out the first step on the inner hole of the plate. One grinding, after the first grinding is completed, adjust the telescopic rod 412 to move the small conical block 413 downward, thereby reducing the diameter of the conical frame 414 until the grinding device 41 can not touch the inner hole. move down from the lower end of the inner hole. At this time, adjust the retractable frame 31 to move the grinding device 41 downward until the grinding device 41 does not interfere with the rotatable clamping device 2. At this time, the rotating frame 22 is rotated to make the clamping The frame 24 rotates together with the plate until the plate is turned over. At this time, the action of the first grinding is repeated for the second grinding.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention will also There are various changes and modifications which fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. An automatic inner hole grinding machine for machining, comprising a workbench one (1), a clamping device (2), a workbench two (3), a grinding group (4) and an adjustment device (5), characterized in that: The first (1) workbench is an L-shaped plate, a clamping device (2) is fixedly installed on the upper end surface of the right side of the first workbench (1), and a second workbench (2) is fixedly installed on the upper end surface of the left side of the first workbench (1). 3), a grinding group (4) is evenly installed on the upper end of the table two (3), and an adjusting device (5) is installed at the rear end of the grinding group (4); wherein: The clamping device (2) includes a cylindrical frame (21), a rotating frame (22), a large ball (23) and a clamping frame (24). A circular arc groove is formed in the cylindrical frame (21), and the circular arc groove is connected with the rotating frame (22) in a sliding fit manner, the right end of the rotating frame (22) is provided with a rotating handle, and the upper end of the rotating frame (22) is provided with There is a small arc-shaped groove, a large ball (23) is installed in the small arc-shaped groove through a pin shaft, a clamping frame (24) is fixedly installed at the left end of the rotating frame (22), and the clamping frame (24) is the front, rear and right ends. A right-angle plate is installed with a telescopic frame, and a hydraulic cylinder is installed on the telescopic frame; The grinding group (4) has three grinding devices (41), and the grinding device (41) includes a motor (411), a telescopic rod (412), a small conical block (413), a conical frame (414), and a plane grinding frame (415), a storage box (416) and a vertical grinding block (417), a motor (411) is fixedly installed on the upper end of the table two (3), and a telescopic rod (412) is installed on the output shaft of the motor (411) through a coupling, A small conical block (413) is fixedly installed at the end of the telescopic rod (412), the small conical block (413) is connected with the conical frame (414) through balls, and a surface grinding frame (415) is installed at the lower end of the conical frame (414). ), the lower end of the plane grinding frame (415) is clamped with a receiving box (416), and the upper end of the plane grinding frame (415) is evenly connected with the three vertical grinding blocks (417) by sliding fit; The cone frame (414) includes a cone frustum block (4141), a connecting bracket (4142), an arc-shaped push block (4143) and a rubber ball (4144). The frustum blocks (4141) are connected to each other, a groove is formed at the rear end of the frustum block (4141), and three connecting brackets (4142) are evenly arranged on the surface of the frustum block (4141) along the circumferential direction, and the ends of the connecting brackets (4142) are fixedly installed with an arc-shaped push block (4143), a groove is formed in the arc-shaped push block (4143), and a rubber ball (4144) is installed in the groove through a pin shaft; The vertical grinding block (417) includes a sliding block (4171), an arc-shaped long block (4172), a rectangular grinding block (4173) and a rubber ball (4174), and the sliding track (4153) is in sliding fit with the sliding block. (4171) are connected, the slider (4171) is a rectangular block with a small cylinder, rectangular grooves are formed at the front and rear ends of the rectangular block, balls are installed in the rectangular grooves through the pins, and the upper end of the slider (4171) is fixedly installed with Arc-shaped long block (4172), the outer side of the arc-shaped long block (4172) is evenly installed with inclined rectangular grinding blocks (4173), and the lower end of the rectangular grinding blocks (4173) is evenly fitted with the rubber ball with a small bracket (4173). 4174), and the end of the small bracket is installed on the outside of the arc-shaped long block (4172). 2. The automatic inner hole grinding machine for machining according to claim 1, characterized in that: the second worktable (3) comprises a retractable frame (31), a slide rail (32) and a small moving block (33) , a telescopic frame (31) is fixedly installed on the upper end face of the left side of workbench one (1), a sliding rail (32) is fixedly installed on the upper end of the telescopic frame (31), there are three small moving blocks (33), and the sliding rail (32) ) is connected with the small moving blocks (33) on the left and right sides by sliding fit, a small moving block (33) is fixedly installed in the middle of the slide rail (32), and the upper end of the small moving block (33) is connected to the motor (411). The lower end of the small moving block (33) is fixedly connected, a rectangular groove is formed at the lower end of the small moving block (33), a small ball is installed in the rectangular groove through a pin shaft, and a hydraulic cylinder is installed in the telescopic frame (31). 3. The automatic inner hole grinding machine for machining according to claim 1, characterized in that: the adjusting device (5) comprises a long strip (51), a long strip (52) and a groove plate ( 53), the rear ends of the telescopic rods (412) on the left and right sides are respectively connected with one end of the long strip (51) and the two long strips (52) in a sliding manner, and the long strip one (51) is connected with the long strip. The other end of the second strip (52) is connected by rivets, the rear end of the middle telescopic rod (412) is fixedly installed with a groove plate (53), and the middle of the groove plate (53) is provided with a groove, and the two long strips (52) The lower end of the other end is connected with the groove in a sliding fit manner. 4. The automatic inner hole grinding machine for machining according to claim 1, wherein the surface grinding frame (415) comprises a ring plate (4151), a grinding tool (4152) and a sliding track (4153), The lower end of the truncated cone block (4141) is connected with the annular plate (4151) in a sliding fit manner, and three grinding tools (4152) are evenly clamped in the annular plate (4151) along the circumferential direction. A sliding track (4153) is installed just below the vertical grinding block (417). 5 . The automatic inner hole grinding machine for machining according to claim 1 , wherein the storage box ( 416 ) comprises a storage rack ( 4161 ), an arc buckle ( 4162 ), and a rectangular buckle ( 4163 ). 6 . With the film (4164), the lower end of the ring plate (4151) is installed with a storage rack (4161) through a snap, and the outer side of the storage rack (4161) is mounted with a film (4164) through an arc snap (4162), and the storage rack (4161) A film (4164) is installed on the inner side through a rectangular buckle (4163). The film (4164) is divided into two left and right semicircular rings, and the left and right semicircular rings are connected by the buckles. 6 . The automatic inner hole grinding machine for machining according to claim 1 , wherein the two end surfaces of the vertical grinding block (417) are concave arc surfaces, and the concave arc surfaces are evenly provided with semicircular surfaces. 7 . Grooves and convex arc grooves.

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