Automatic polishing machine for connecting rod of ratchet wrench

Abstract

The invention discloses an automatic polishing machine for a connecting rod for a ratchet wrench, comprising a front frame and a rear frame, a reduction box is fixed on the middle top surface of the rear frame, a driving motor is fixed on the reduction box, the driving motor drives the reduction box to run, and rotating wheels are fixed on both ends of the main output shaft of the reduction box; at least two vertical columns are installed at the rear of the rear frame, a sleeve body is inserted into the vertical columns, the sleeve body is fixedly connected to the vertical columns by bolts, a connecting block is fixed to the rear of the sleeve body, a wheel body is hinged on the connecting block by a bearing, and a polishing abrasive belt is tensioned on the corresponding rotating wheel and the wheel body; the machine can automatically load and polish and automatically unload materials, and has a high degree of automation, good effect, high efficiency and good safety.

Description

Technical field:

[0001] The invention relates to the technical field of fastener tool equipment, and more particularly to an automatic polishing machine for a connecting rod of a ratchet wrench. Background technology:

[0002] During the processing of the existing ratchet wrench connecting rod, its outer side wall needs to be polished and ground. The existing method is to manually hold it and polish it close to the sanding belt. The whole process requires manual operation, which is inefficient and has poor effect. In addition, the manual holding operation is easy to polish the fingers, which poses a safety hazard. Summary of the invention:

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic polishing machine for a ratchet wrench connecting rod, which can automatically load, polish and unload materials, has a high degree of automation, good effect, high efficiency and good safety.

[0004] The solution of the present invention to solve the technical problem is:

[0005] An automatic polishing machine for a ratchet wrench connecting rod comprises a front frame and a rear frame, a reduction box is fixed on the middle top surface of the rear frame, a driving motor is fixed on the reduction box, the driving motor drives the reduction box to operate, and rotating wheels are fixed on both ends of the main output shaft of the reduction box;

[0006] At least two vertical columns are installed at the rear of the rear frame, a sleeve is inserted into the vertical column, the sleeve is fixedly connected to the vertical column by bolts, a connecting block is fixed to the rear of the sleeve, a wheel body is hinged on the connecting block through a bearing, and the polishing belt is tensioned on the corresponding rotating wheel and the wheel body;

[0007] The front frame is located in front of the rear frame, a horizontal connecting plate extending left and right is fixed to the middle top surface of the front frame, a double-output shaft pushing oil cylinder extending left and right is fixed to the middle top surface of the horizontal connecting plate, a pushing block is fixed to the ends of two push rods of the double-output shaft pushing oil cylinder, a first horizontal connecting plate is fixed to the top surface of the pushing block, and a connecting rod clamping and moving mechanism is fixed to the top surface of the first horizontal connecting plate;

[0008] The rear end of the connecting rod clamping moving mechanism is located in front of the corresponding rotating wheel;

[0009] An intermediate support frame is fixed to the middle top surface of the front frame, connecting horizontal plates are fixed to the side walls of the left and right side plates of the intermediate support frame, and a material receiving mechanism is fixed to the top surface of the connecting horizontal plates;

[0010] An oblique material storage trough body is fixed on the upper side wall of the side plate of the middle support frame, the front end of the oblique material storage trough body is higher than the rear end, and the rear end of the oblique material storage trough body corresponds to the rear ends of the two material receiving rods of the material receiving mechanism.

[0011] The lower part of the vertical column is inserted with a lower sleeve, and the lower sleeve is fixedly connected to the vertical column by bolts. A lower connecting block is fixed on the side wall of the lower sleeve, and the lower connecting block is hinged with a connecting arm through a hinge shaft. The bottom end of the connecting arm is hinged with a tensioning wheel through a hinge shaft. A return spring is fixed to the bottom surface of the bottom end of the connecting arm, and the bottom end of the return spring is fixed to the main bottom plate. The bottom ends of the front frame, the rear frame and the vertical column are all fixed on the top surface of the main bottom plate.

[0012] The polishing belt is tensioned on the corresponding rotating wheel, wheel body and tensioning wheel.

[0013] A plurality of supporting columns are fixed to the edges of the main bottom plate, and the upper top plate is fixed to the top surfaces of all the supporting columns and the vertical columns.

[0014] Four bearing seats are fixed on the top surfaces of the horizontal connecting plates at the left and right parts of the double-outlet shaft pushing cylinder, the two ends of the transverse guide rod are fixed in the inner circles of the two corresponding bearing seats, the front and rear parts of the bottom surface of the first horizontal connecting plate are fixed with first sliding blocks, the transverse guide rod is inserted into the corresponding first sliding blocks, and the pushing block is located between the two corresponding first sliding blocks.

[0015] The connecting rod clamping and moving mechanism includes a first bearing seat fixed at the four corners of the first horizontal connecting plate, two ends of the two clamping guide rods on the left and right parts are respectively fixed on the corresponding first bearing seats, an intermediate pushing oil cylinder is fixed on an intermediate connecting block fixed at the middle of the top surface of the first horizontal connecting plate, a push rod of the intermediate pushing oil cylinder passes through the rear wall surface of the intermediate connecting block and is fixed with the first pushing block, a grabbing and moving horizontal plate is fixed on the top surface of the first pushing block, lower sliding guide blocks are fixed on the left and right bottom surfaces of the grabbing and moving horizontal plate, the clamping guide rod is inserted into the guide through hole of the corresponding lower sliding guide block, and an elongated guide groove body extending left and right is fixed on the rear end top surface of the grabbing and moving horizontal plate;

[0016] A stepped through groove with a smaller upper width and a larger lower width is formed in the middle of the top surface of the elongated guide groove body, a sliding positioning block is fixed to the left and right ends of the elongated guide groove body, an adjusting block is fixed to the top surface of the sliding positioning block, a clamping connecting plate is formed at the rear end of the adjusting block, a clamping cylinder is fixed to the outer wall of one clamping connecting plate, a push rod of the clamping cylinder passes through the clamping connecting plate and is fixed to the clamping connecting block, a main rotating motor is fixed to the outer wall of the other clamping connecting plate, an output shaft of the main rotating motor passes through the clamping connecting plate and is fixed to a clamping head.

[0017] A first clamping concave hole is formed in the middle of the end surface of the clamping connection block, a second clamping protrusion is formed in the middle of the end surface of the clamping head, and two ends of the connecting rod correspond to the first clamping concave hole and the second clamping protrusion.

[0018] The upper front side wall and the rear side wall of the elongated guide groove body are both formed with extended protruding strips, the middle part of the bottom surface of the sliding positioning block is formed with a mounting groove, the top surface of the mounting groove is closely attached to the top surface of the elongated guide groove body, and the extended protruding strip is inserted into the elongated groove formed on the front and rear side walls of the upper part of the mounting groove;

[0019] A stepped through hole with a larger upper diameter and a smaller lower diameter is formed in the middle of the top surface of the sliding positioning block, a fixing nut is inserted in the lower part of the stepped through hole, the bottom end of the screw portion of the fixing bolt passes through the lower through hole and the mounting groove of the stepped through hole and is screwed on the corresponding fixing nut, the top surface of the fixing nut is pressed against the bottom surface of the upper groove section of the stepped through hole, one of the side walls of the fixing nut is close to the inner side wall of the lower part of the stepped through groove, the head of the fixing bolt is inserted in the upper hole section of the stepped through hole, and the bottom surface of the head of the fixing bolt is pressed against the bottom surface of the upper hole section of the stepped through hole.

[0020] A waist-shaped through hole is formed in the middle of the adjusting block, the screw portion of the adjusting bolt is inserted into the waist-shaped through hole, the bottom end of the screw portion of the adjusting bolt is screwed on the sliding positioning block, and the head of the adjusting bolt is pressed against the top surface of the adjusting block.

[0021] The material receiving mechanism includes a connecting and fixing plate fixed at the front and rear ends of the connecting horizontal plate, a material receiving pushing cylinder is fixed on the front wall surface of the front connecting and fixing plate, a push rod of the material receiving pushing cylinder passes through the connecting and fixing plate and is fixed with a material receiving moving block, a material receiving plate is fixed on the top surface of the material receiving moving block, at least two material receiving rods are fixed on the rear end of the top surface of the material receiving plate, a material discharge trough is formed on the rear end top surface of the material receiving rod, a mounting hole is formed in the middle of the bottom surface of the material discharge trough, a permanent magnet block is fixed in the mounting hole, and the top surface of the permanent magnet block is flush with the bottom surface of the material discharge trough.

[0022] A plurality of material receiving transverse rods are fixed between the two connecting and fixing plates, a bottom guide slide block is fixed to the bottom surface of the material receiving plate, and the material receiving transverse rods are inserted into guide through holes in the bottom guide slide block.

[0023] Side protective plates are fixed on the left and right sides of the rear end of the inclined material storage trough body, and the bottoms of the two side protective plates extend downward from the bottom surface of the inclined material storage trough body. Vertical limit strips are fixed on the inner side walls of the rear ends of the two side protective plates, and a material drop groove is formed between the vertical limit strip and the rear end of the inclined material storage trough body, and the material drop groove corresponds to the material discharge groove of the material receiving rod on the material receiving plate of the material receiving mechanism.

[0024] A limit horizontal block is fixed on the front top surface of the material receiving plate, and the top surface of the limit horizontal block is close to the rear end bottom surface of the inclined material storage tank body and the bottom surface of the vertical limit strip;

[0025] Oblique guide protrusions are fixed on the left and right inner side walls of the rear part of the oblique material storage trough body, and an oblique material guide trough is formed between the oblique guide protrusion and the bottom plate of the oblique material storage trough body.

[0026] A material discharging and receiving trough body is fixed on the front frame or the rear frame, and the upper part of the material discharging and receiving trough body is a feeding end, which is located directly below the front part of the rotating wheel.

[0027] The outstanding effects of the present invention are:

[0028] Compared with the prior art, it can automatically load and polish and automatically unload materials, with a high degree of automation, good effect, high efficiency and good safety. Description of the drawings:

[0029] Figure 1 It is a partial structural schematic diagram of the present invention;

[0030] Figure 2 is a partial side view of the present invention;

[0031] Figure 3 yes Figure 1 A partial enlarged view of

[0032] Figure 4 yes Figure 2 A partial enlarged view of

[0033] Figure 5 yes Figure 4 A partial enlarged view of

[0034] Figure 6 It is a partial top view of the sliding positioning block and the adjusting block;

[0035] Figure 7 It is a schematic diagram of the local structure between the clamping connection block, the clamping head and the connecting rod. Specific implementation method:

[0036] For example, see Figures 1 to 7 As shown, an automatic polishing machine for a ratchet wrench connecting rod comprises a front frame 10 and a rear frame 20, a reduction box 21 is fixed to the middle top surface of the rear frame 20, a driving motor 22 is fixed to the reduction box 21, an output shaft of the driving motor 22 is connected to an input shaft of the reduction box 21, the driving motor 22 drives the reduction box 21 to operate, and rotating wheels 23 are fixed to both ends of the main output shaft of the reduction box 21;

[0037] At least two vertical columns 30 are installed at the rear of the rear frame 20, and a sleeve 31 is inserted into the vertical column 30. The sleeve 31 is fixedly connected to the vertical column 30 by bolts. A connecting block is fixed to the rear of the sleeve 31, and a wheel body 32 is hinged on the connecting block through a bearing. The polishing belt 1 is tensioned on the corresponding rotating wheel 23 and the wheel body 32;

[0038] The front frame 10 is located in front of the rear frame 20, a horizontal connecting plate 11 extending left and right is fixed to the middle top surface of the front frame 10, a double-shaft pushing cylinder 12 extending left and right is fixed to the middle top surface of the horizontal connecting plate 11, a pushing block 13 is fixed to the ends of two push rods of the double-shaft pushing cylinder 12, a first horizontal connecting plate 14 is fixed to the top surface of the pushing block 13, and a connecting rod clamping moving mechanism 40 is fixed to the top surface of the first horizontal connecting plate 14;

[0039] The rear end of the connecting rod clamping moving mechanism 40 is located in front of the corresponding rotating wheel 23;

[0040] An intermediate support frame 15 is fixed to the middle top surface of the front frame 10, and connecting horizontal plates 16 are fixed to the side walls of the left and right side plates of the intermediate support frame 15, and a material receiving mechanism 50 is fixed to the top surface of the connecting horizontal plate 16;

[0041] An oblique material storage trough 17 is fixed on the upper side wall of the side plate of the intermediate support frame 15 , the front end of the oblique material storage trough 17 is higher than the rear end, and the rear end of the oblique material storage trough 17 corresponds to the rear ends of the two material receiving rods 51 of the material receiving mechanism 50 .

[0042] Furthermore, a lower sleeve 33 is inserted into the lower part of the vertical column 30, and the lower sleeve 33 is fixedly connected to the vertical column 30 by bolts. A lower connecting block 34 is fixed to the side wall of the lower sleeve 33, and the lower connecting block 34 is hinged with a connecting arm 35 through a hinge shaft. The bottom end of the connecting arm 35 is hinged with a tensioning wheel 36 through a hinge shaft. A return spring 37 is fixed to the bottom surface of the bottom end of the connecting arm 35, and the bottom end of the return spring 37 is fixed to the main bottom plate 38. The bottom ends of the front frame 10, the rear frame 20 and the vertical column 30 are all fixed to the top surface of the main bottom plate 38.

[0043] The polishing belt 1 is tensioned on the corresponding rotating wheel 23 , the wheel body 32 and the tensioning wheel 36 .

[0044] Furthermore, a plurality of support columns 39 are fixed to the edges of the main bottom plate 38 , and an upper top plate 391 is fixed on the top surfaces of all the support columns 39 and the vertical columns 30 .

[0045] Furthermore, four bearing seats 18 are fixed on the top surface of the horizontal connecting plate 11 at the left and right parts of the double-outlet shaft pushing cylinder 12, the two ends of the transverse guide rod 19 are fixed in the inner rings of the two corresponding bearing seats 18, the front and rear parts of the bottom surface of the first horizontal connecting plate 14 are fixed with first sliding blocks 141, the transverse guide rod 19 is inserted into the corresponding first sliding blocks 141, and the pushing block 13 is located between the two corresponding first sliding blocks 141.

[0046] Further, the connecting rod clamping and moving mechanism 40 includes a first bearing seat 41 fixed at the four corners of the first horizontal connecting plate 14, the two ends of the two clamping guide rods 42 on the left and right are respectively fixed on the corresponding first bearing seats 41, the intermediate pushing cylinder 43 is fixed on the intermediate connecting block 142 fixed in the middle of the top surface of the first horizontal connecting plate 14, the push rod of the intermediate pushing cylinder 43 passes through the rear wall surface of the intermediate connecting block 142 and is fixed with a first pushing block 44, a grabbing and moving horizontal plate 45 is fixed on the top surface of the first pushing block 44, the left and right bottom surfaces of the grabbing and moving horizontal plate 45 are fixed with lower sliding guide blocks 46, the clamping guide rod 42 is inserted into the guide through hole of the corresponding lower sliding guide block 46, and a long guide groove body 47 extending left and right is fixed on the rear end top surface of the grabbing and moving horizontal plate 45;

[0047] A stepped through groove 471 with a smaller upper width and a larger lower width is formed in the middle of the top surface of the elongated guide groove body 47, a sliding positioning block 48 is fixed to the left and right ends of the elongated guide groove body 47, an adjusting block 49 is fixed to the top surface of the sliding positioning block 48, a clamping connecting plate 491 is formed at the rear end of the adjusting block 49, a clamping connecting plate 491 is fixed to the outer wall of the clamping connecting plate 491, a push rod of the clamping cylinder 492 passes through the clamping connecting plate 491 and is fixed to a clamping connecting block 493, a main rotating motor 494 is fixed to the outer wall of the other clamping connecting plate 491, an output shaft of the main rotating motor 494 passes through the clamping connecting plate 493 and is fixed to a clamping head 495.

[0048] Furthermore, a first clamping recess 4931 is formed in the middle of the end surface of the clamping connection block 493 , a second clamping protrusion 4951 is formed in the middle of the end surface of the clamping head 495 , and both ends of the connecting rod correspond to the first clamping recess 4931 and the second clamping protrusion 4951 .

[0049] Furthermore, the upper front side wall and the rear side wall of the elongated guide groove body 47 are formed with extended protruding strips 472, and the middle part of the bottom surface of the sliding positioning block 48 is formed with a mounting groove 481, the top surface of the mounting groove 481 is in close contact with the top surface of the elongated guide groove body 47, and the extended protruding strip 472 is inserted into the elongated grooves formed on the front and rear side walls of the upper part of the mounting groove 481;

[0050] A stepped through hole with a larger upper diameter and a smaller lower diameter is formed in the middle of the top surface of the sliding positioning block 48, a fixing nut 2 is inserted in the lower part of the stepped through groove 471, the bottom end of the screw portion of the fixing bolt 3 passes through the lower through hole of the stepped through hole and the mounting groove 481 and is screwed on the corresponding fixing nut 2, the top surface of the fixing nut 2 is pressed against the bottom surface of the upper groove section of the stepped through groove 471, one of the side walls of the fixing nut 2 is close to the inner side wall of the lower part of the stepped through groove 471, the head of the fixing bolt 3 is inserted in the upper hole section of the stepped through hole, and the bottom surface of the head of the fixing bolt 3 is pressed against the bottom surface of the upper hole section of the stepped through hole.

[0051] Furthermore, a waist-shaped through hole 496 is formed in the middle of the adjusting block 49, and the screw portion of the adjusting bolt 497 is inserted into the waist-shaped through hole 496. The bottom end of the screw portion of the adjusting bolt 497 is screwed onto the sliding positioning block 48, and the head of the adjusting bolt 497 is pressed against the top surface of the adjusting block 49.

[0052] Furthermore, the material receiving mechanism 50 includes a connecting fixed plate 52 fixed at the front and rear ends of the connecting horizontal plate 16, a material receiving pushing cylinder 53 is fixed on the front wall surface of the front connecting fixed plate 52, a push rod of the material receiving pushing cylinder 53 passes through the connecting fixed plate 52 and is fixed with a material receiving moving block 54, a material receiving plate 55 is fixed on the top surface of the material receiving moving block 54, at least two material receiving rods 51 are fixed at the rear end of the top surface of the material receiving plate 55, a material discharge trough 511 is formed on the top surface of the rear end of the material receiving rod 51, a mounting hole is formed in the middle of the bottom surface of the material discharge trough 511, a permanent magnet block 512 is fixed in the mounting hole, and the top surface of the permanent magnet block 512 is flush with the bottom surface of the material discharge trough 511.

[0053] Furthermore, a plurality of material receiving transverse rods 56 are fixed between the two connecting and fixing plates 52 , a bottom guide slider 57 is fixed to the bottom surface of the material receiving plate 55 , and the material receiving transverse rods 56 are inserted into guide through holes in the bottom guide slider 57 .

[0054] Furthermore, side protective plates 171 are fixed on the left and right sides of the rear end of the inclined material storage trough body 17, and the bottoms of the two side protective plates 171 extend downward from the bottom surface of the inclined material storage trough body 17, and vertical limit strips 172 are fixed on the inner side walls of the rear ends of the two side protective plates 171. A material drop groove 173 is formed between the vertical limit strip 172 and the rear end of the inclined material storage trough body 17, and the material drop groove 173 corresponds to the material discharge groove 511 of the material receiving rod 51 on the material receiving plate 55 of the material receiving mechanism 50.

[0055] Furthermore, a limit horizontal block 551 is fixed on the front top surface of the material receiving plate 55, and the top surface of the limit horizontal block 551 is close to the rear end bottom surface of the inclined material storage tank body 17 and the bottom surface of the vertical limit strip 172;

[0056] Oblique guide protrusions 1730 are fixed to the left and right inner side walls of the rear portion of the oblique material storage trough body 17 , and an oblique material guide groove 174 is formed between the oblique guide protrusions 1730 and the bottom plate of the oblique material storage trough body 17 .

[0057] Furthermore, a material receiving trough 60 is fixed on the front frame 10 or the rear frame 20 , and the upper part of the material receiving trough 60 is the feeding end, which is located directly below the front part of the rotating wheel 23 .

[0058] A raised strip is fixed on the top surface of the bottom plate of the inclined material storage trough body 17 to reduce the contact area between the connecting rod and the top surface of the bottom plate of the inclined material storage trough body 17 when it is placed, thereby ensuring that the connecting rod can automatically move backwards and will not be stuck on the bottom plate of the inclined material storage trough body 17.

[0059] When the present embodiment is in use, the connecting rod to be processed is placed in the inclined material storage trough body 17, and the two ends of the connecting rod at the rear thereof will move backward and downward along the inclined material guide groove 174 of the inclined material storage trough body 17 and finally enter the material drop groove 173, and the bottom connecting rod in the material drop groove 173 is on the top surface of the limit horizontal block 551, and then, the push rod of the material receiving push cylinder 53 is retracted, so that the material receiving rod 51 moves forward, so that the material drop groove 511 of the material receiving rod 51 faces the material drop groove 173, at this time, the bottom connecting rod falls into all the material drop grooves 511 and is fixed by adsorption by the permanent magnet block 512, and then, the push rod of the material receiving push cylinder 53 is pushed , so that the connecting rod moves backward to the material connection position, at which time it is between the corresponding clamping connection block 493 and the clamping head 495, and then the push rod of the clamping oil cylinder 492 is pushed to make the clamping connection block 493 move toward the connecting rod, so that one end of the connecting rod is inserted into the first clamping recessed hole 4931, and as the clamping connection block 493 continues to push, the other end of the connecting rod is moved and the second clamping protrusion 4951 is inserted into the jack at this end of the connecting rod, and finally, the connecting rod is clamped between the clamping connection block 493 and the clamping head 495 to achieve clamping, and then, the push rod of the material connection pushing oil cylinder 53 is retracted, so that the material connection rod 51 retreats, and the subsequent connecting rod is connected to the material;

[0060] At the same time, the push rod of the middle pushing cylinder 43 pushes the connecting rod to approach the polishing belt 1, and the main rotating motor 494 is operated to realize the rotation of the connecting rod, and the polishing belt 1 is operated by the driving motor 22 to realize operation. When the connecting rod contacts the polishing belt 1, polishing is realized. During polishing, the push rod of the double-output shaft pushing cylinder 12 is pushed to realize the left and right movement of the connecting rod, so that the polishing belt 1 can polish and grind the entire side wall of the connecting rod. After completion, the push rod of the middle pushing cylinder 43 retracts, and at the same time, the push rod of the clamping cylinder 492 retracts. At this time, the processed connecting rod will fall along the material receiving trough body 60 for unloading and receiving. Generally, a receiving box is placed at the bottom of the material receiving trough body 60 for unloading and receiving. The processed connecting rod can be dropped from the material receiving trough body 60 into the receiving box for collection, which is very convenient.

[0061] When the push rod of the middle pushing cylinder 43 retracts, the push rod of the receiving pushing cylinder 53 is pushed out, and the new connecting rod is placed between the clamping connecting block 493 and the clamping head 495, and subsequent processing can be carried out, which is very convenient and realizes continuous processing.

[0062] In this embodiment, when the polishing belt 1 needs to be replaced, the connecting arm 35 can be pulled when the driving motor 22 stops running to deform the return spring 37 so that the tensioning wheel 36 no longer tensions the polishing belt 1. The polishing belt 1 can be taken out and replaced, which is very convenient.

[0063] Finally, the above implementation modes are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

Claims

1. An automatic polishing machine for a ratchet wrench connecting rod, comprising a front frame (10) and a rear frame (20), characterized in that: A reduction box (21) is fixed to the top surface of the middle of the rear frame (20), a driving motor (22) is fixed to the reduction box (21), the driving motor (22) drives the reduction box (21) to operate, and rotating wheels (23) are fixed to both ends of the main output shaft of the reduction box (21); At least two vertical columns (30) are installed at the rear of the rear frame (20), a sleeve (31) is inserted into the vertical column (30), the sleeve (31) is fixedly connected to the vertical column (30) by bolts, a connecting block is fixed to the rear of the sleeve (31), a wheel body (32) is hinged to the connecting block by a bearing, and the polishing belt (1) is tensioned on the corresponding rotating wheel (23) and the wheel body (32); The front frame (10) is located in front of the rear frame (20); a horizontal connecting plate (11) extending leftward and rightward is fixed to the middle top surface of the front frame (10); a double-shaft pushing oil cylinder (12) extending leftward and rightward is fixed to the middle top surface of the horizontal connecting plate (11); a pushing block (13) is fixed to the ends of two push rods of the double-shaft pushing oil cylinder (12); a first horizontal connecting plate (14) is fixed to the top surface of the pushing block (13); and a connecting rod clamping and moving mechanism (40) is fixed to the top surface of the first horizontal connecting plate (14); The rear end of the connecting rod clamping moving mechanism (40) is located in front of the corresponding rotating wheel (23); An intermediate support frame (15) is fixed to the middle top surface of the front frame (10), connecting horizontal plates (16) are fixed to the side walls of the left and right side plates of the intermediate support frame (15), and a material receiving mechanism (50) is fixed to the top surface of the connecting horizontal plate (16); An oblique material storage trough (17) is fixed on the upper side wall of the side plate of the intermediate support frame (15), the front end of the oblique material storage trough (17) is higher than the rear end, and the rear end of the oblique material storage trough (17) corresponds to the rear ends of the two material receiving rods (51) of the material receiving mechanism (50); A lower sleeve (33) is inserted into the lower part of the vertical column (30), and the lower sleeve (33) is fixedly connected to the vertical column (30) by bolts. A lower connecting block (34) is fixed to the side wall of the lower sleeve (33), and the lower connecting block (34) is hinged to a connecting arm (35) via a hinge shaft. The bottom end of the connecting arm (35) is hinged to a tensioning wheel (36) via a hinge shaft. A return spring (37) is fixed to the bottom surface of the bottom end of the connecting arm (35), and the bottom end of the return spring (37) is fixed to the main bottom plate (38). The bottom ends of the front frame (10), the rear frame (20) and the vertical column (30) are all fixed to the top surface of the main bottom plate (38); The polishing belt (1) is tensioned on the corresponding rotating wheel (23), the wheel body (32) and the tensioning wheel (36); The material receiving mechanism (50) comprises a connecting fixed plate (52) fixed at the front and rear ends of the connecting horizontal plate (16); a material receiving pushing cylinder (53) is fixed on the front wall surface of the front connecting fixed plate (52); a push rod of the material receiving pushing cylinder (53) passes through the connecting fixed plate (52) and is fixed with a material receiving moving block (54); a material receiving plate (55) is fixed on the top surface of the material receiving moving block (54); at least two material receiving rods (51) are fixed at the rear end of the top surface of the material receiving plate (55); a material discharge trough (511) is formed on the top surface of the rear end of the material receiving rod (51); a mounting hole is formed in the middle of the bottom surface of the material discharge trough (511); a permanent magnet block (512) is fixed in the mounting hole; the top surface of the permanent magnet block (512) is flush with the bottom surface of the material discharge trough (511); Side protection plates (171) are fixed on both left and right sides of the rear end of the oblique material storage trough body (17), the bottoms of the two side protection plates (171) extend downward from the bottom surface of the oblique material storage trough body (17), vertical limit strips (172) are fixed on the inner side walls of the rear ends of the two side protection plates (171), a material drop groove (173) is formed between the vertical limit strip (172) and the rear end of the oblique material storage trough body (17), and the material drop groove (173) corresponds to the material discharge groove (511) of the material receiving rod (51) on the material receiving plate (55) of the material receiving mechanism (50); A limiting horizontal block (551) is fixed on the front top surface of the material receiving plate (55), and the top surface of the limiting horizontal block (551) is close to the rear end bottom surface of the inclined material storage tank body (17) and the bottom surface of the vertical limiting strip (172); Oblique guide protrusions (1730) are fixed to the left and right inner side walls of the rear portion of the oblique material storage trough body (17), and an oblique material guide groove (174) is formed between the oblique guide protrusions (1730) and the bottom plate of the oblique material storage trough body (17).

2. The automatic polishing machine for a ratchet wrench connecting rod according to claim 1, characterized in that: A plurality of support columns (39) are fixed to the edge of the main bottom plate (38), and an upper top plate (391) is fixed to the top surfaces of all the support columns (39) and the vertical column (30).

3. The automatic polishing machine for a ratchet wrench connecting rod according to claim 1, characterized in that: Four bearing seats (18) are fixed on the top surfaces of the horizontal connecting plates (11) at the left and right parts of the double-outlet shaft pushing cylinder (12), the two ends of the transverse guide rod (19) are fixed in the inner rings of the two corresponding bearing seats (18), the front and rear parts of the bottom surface of the first horizontal connecting plate (14) are fixed with first sliding blocks (141), the transverse guide rod (19) is inserted into the corresponding first sliding blocks (141), and the pushing block (13) is located between the two corresponding first sliding blocks (141).

4. The automatic polishing machine for a ratchet wrench connecting rod according to claim 1, characterized in that: The connecting rod clamping and moving mechanism (40) comprises a first bearing seat (41) fixed at four corners of the first horizontal connecting plate (14), two ends of two clamping guide rods (42) on the left and right are respectively fixed on the corresponding first bearing seats (41), an intermediate pushing oil cylinder (43) is fixed on an intermediate connecting block (142) fixed at the middle of the top surface of the first horizontal connecting plate (14), a push rod of the intermediate pushing oil cylinder (43) passes through the rear wall surface of the intermediate connecting block (142) and is fixed with a first pushing block (44), a grabbing and moving horizontal plate (45) is fixed on the top surface of the first pushing block (44), lower sliding guide blocks (46) are fixed on the left and right bottom surfaces of the grabbing and moving horizontal plate (45), the clamping guide rod (42) is inserted into the guide through hole of the corresponding lower sliding guide block (46), and a long guide groove body (47) extending leftward and rightward is fixed on the rear end top surface of the grabbing and moving horizontal plate (45); A stepped through groove (471) having a smaller upper width and a larger lower width is formed in the middle of the top surface of the elongated guide groove body (47); a sliding positioning block (48) is fixed to the left and right ends of the elongated guide groove body (47); an adjusting block (49) is fixed to the top surface of the sliding positioning block (48); a clamping connecting plate (491) is formed at the rear end of the adjusting block (49); a clamping cylinder (492) is fixed to the outer wall of one clamping connecting plate (491); a push rod of the clamping cylinder (492) passes through the clamping connecting plate (491) and is fixed to a clamping connecting block (493); a main rotating motor (494) is fixed to the outer wall of the other clamping connecting plate (491); an output shaft of the main rotating motor (494) passes through the clamping connecting plate (491) and is fixed to a clamping head (495).

5. The automatic polishing machine for a ratchet wrench connecting rod according to claim 4, characterized in that: A first clamping recessed hole (4931) is formed in the middle of the end surface of the clamping connection block (493), a second clamping protrusion (4951) is formed in the middle of the end surface of the clamping head (495), and both ends of the connecting rod correspond to the first clamping recessed hole (4931) and the second clamping protrusion (4951).

6. The automatic polishing machine for a ratchet wrench connecting rod according to claim 1, characterized in that: A plurality of material receiving transverse rods (56) are fixed between the two connecting and fixing plates (52), a bottom guide slider (57) is fixed to the bottom surface of the material receiving plate (55), and the material receiving transverse rods (56) are inserted into guide through holes in the bottom guide slider (57).

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