Automatic grinding and polishing equipment for wrench

Abstract

The utility model discloses an automatic grinding and polishing device for wrenches, which comprises a wrench feeding unit and a grinding unit, the wrench feeding unit comprises a rotary table and a fixed back plate, the rotary table rotates, the fixed back plate is arranged close to the back of the rotary table, and a plurality of limiting grooves are arranged on the rotary table; a feeding station, a discharging station and a polishing station are arranged around the rotating disc, and a first avoiding notch is formed in the position, corresponding to the polishing station, of the fixed back plate. The polishing unit is arranged at the wrench polishing station and comprises a first polishing module and a second polishing module; the first polishing module and the second polishing module each comprise a second driving part, a supporting plate driven by the second driving part to move front and back, a third driving part fixed to the supporting plate and a polishing wheel driven by the third driving part to rotate, and the shaft end face of the polishing wheel is a polishing working face. Wrench feeding, double-face grinding and wrench discharging can be achieved at the same time, and the grinding and polishing efficiency of the wrenches is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spanner polishing equipment technical field, especially, it relates to a spanner automatic polishing equipment.

BACKGROUND

[0002] After the production of spanner, in order to improve the service life and overall aesthetic property, the surface of spanner needs to be polished to remove the edge and protrusion on the surface of spanner, so as to facilitate the spraying of antirust layer and decorative layer. The prior art patent CN220637366U discloses a spanner flat surface polishing equipment, the spanner is placed on the positioning fixture and conveyed to the flat surface polishing mechanism along the conveying line, and the spanner is polished on one side by the abrasive belt. The equipment can only polish the spanner on one side at a time, and the polishing efficiency is low.

[0003] The prior art patent CN118699972A discloses a spanner two-end rapid polishing equipment, the spanner is placed in the carrier in a lying state, one end of the spanner is cantilevered outside, and then enters a pair of polishing rollers opposite to each other to perform polishing operation. Although the equipment realizes double-side polishing of the spanner, the operator needs to place multiple spanners at a time for feeding, and after the polishing is completed, the multiple spanners need to be taken out before the feeding of the next batch can be carried out, so that the waiting time for feeding and discharging of the polishing equipment is long.

[0004] Therefore, it is necessary to provide a new spanner automatic polishing equipment to solve the above technical problems.

UTILITARY MODEL CONTENT

[0005] The main purpose of the utility model is to provide a spanner automatic polishing equipment, which can realize feeding, double-side polishing and discharging of spanner at the same time, greatly improving the polishing efficiency of spanner.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme: a spanner automatic polishing equipment, comprising:

[0007] A spanner feeding unit comprises a first driving member, a rotating disc driven by the first driving member to rotate, and a fixed back plate arranged close to the back surface of the rotating disc. A plurality of hollow limiting grooves are arranged annularly on the rotating disc for accommodating spanners. A spanner feeding station, a spanner discharging station and a spanner polishing station are arranged around the rotating disc. The fixed back plate is provided with a first avoiding gap corresponding to the spanner polishing station. When the spanner moves to the spanner polishing station along with the rotating disc, the front and back surfaces of one end of the spanner are exposed and protrude from the surface of the rotating disc.

[0008] The polishing unit is arranged at the wrench polishing station and comprises a first polishing module and a second polishing module arranged oppositely at the front and rear sides of the rotating disc. The first polishing module and the second polishing module each comprise a second driving member, a support plate driven by the second driving member to move forward and backward, a third driving member fixed on the support plate, and a polishing wheel driven by the third driving member to rotate. The shaft end surface of the polishing wheel is a polishing working surface. The shaft end surfaces of the two polishing wheels are arranged oppositely with a gap therebetween, and the wrench on the rotating disc rotates through the gap.

[0009] Further, the limiting groove comprises a first limiting groove for receiving the wrench big head radially outward and a second limiting groove for receiving the wrench small head radially outward.

[0010] Further, the first avoiding gap is provided with an end limiting module for limiting the wrench to approach one end of the rotating disc. The end limiting module comprises a pair of limiting plates oppositely arranged at the front and rear sides of the rotating disc. The pair of limiting plates form a limiting sliding groove therebetween. When the wrench moves to the first avoiding gap along with the rotating disc, one end of the wrench approaches the rotating disc and extends into the limiting sliding groove, and the other end is outside the limiting sliding groove and located in the limiting groove.

[0011] Further, the polishing station further comprises a protective cover for enclosing a part of the polishing station. The protective cover is internally surrounded by a polishing working cavity, and two polishing wheels partially extend into the polishing working cavity. The rotating disc carrying the wrench rotates into the polishing working cavity.

[0012] Further, the upper part of the protective cover is provided with a rotating disc inlet, and a first brush is arranged at the rotating disc inlet.

[0013] Further, the polishing station further comprises a cooling liquid nozzle for spraying cooling liquid at the rotating disc inlet. The cooling liquid nozzle sprays cooling liquid on the rotating disc, and the cooling liquid flows downward along the rotating disc to the wrench at the wrench polishing station.

[0014] Further, the polishing station further comprises a second brush for cleaning the debris on the surface of the polished wrench. The second brush is arranged between the wrench polishing station and the wrench unloading station.

[0015] Further, the wrench positive and negative detection module is arranged between the wrench feeding station and the wrench polishing station and on the front side of the turntable; the wrench positive and negative detection module comprises a pressing wheel for pressing one end of the wrench and a sensing assembly for sensing the height of the surface of the other end of the wrench; the sensing assembly comprises a mounting bracket, a sensing sheet rotatably arranged at the bottom of the mounting bracket, a sensing roller rotatably arranged at one end of the sensing sheet and in contact with the surface of the wrench, a sensor fixed on the mounting bracket and sensing the other end of the sensing sheet, and a spring for pressing the one end of the sensing sheet close to the sensing roller downward.

[0016] Further, the first positive and negative detection module for detecting the positive and negative of the wrench in the first limiting groove and the second positive and negative detection module for detecting the positive and negative of the wrench in the second limiting groove are further included; the first positive and negative detection module and the second positive and negative detection module both comprise a mounting bracket, a sensing sheet rotatably arranged at the bottom of the mounting bracket, a sensing roller rotatably arranged at one end of the sensing sheet and in contact with the surface of the wrench, a sensor fixed on the mounting bracket and sensing the other end of the sensing sheet, and a spring for pressing the one end of the sensing sheet close to the sensing roller downward.

[0017] Compared with the prior art, the wrench automatic polishing equipment has the advantages that the feeding, double-side polishing and discharging of the wrench can be simultaneously realized, and the polishing efficiency of the wrench is greatly improved.

[0018] (1) The turntable structure is adopted to feed the wrench, a plurality of hollow receiving grooves are arranged in a ring shape on the turntable and are used to carry and limit the wrench, a fixed back plate is arranged at the back of the turntable, the fixed back plate is used to support the back of the wrench, and the position of the polishing station is avoided, so that the front surface and the back surface of the wrench are exposed when the wrench rotates to the polishing station, the two polishing wheels are used to polish the one end of the wrench from both sides, the wrench is rotated to the discharging station after polishing, the feeding, polishing and discharging of the wrench can be simultaneously performed, and an important foundation for greatly improving the polishing efficiency is laid;

[0019] (2) The position stability of the wrench during polishing can be ensured by the existence of the receiving groove at the polishing station, the end limiting module is matched, the other end of the wrench is limited in position, the other end of the wrench is prevented from being separated from the receiving groove during polishing of the one end of the wrench, the position stability during polishing of the wrench is further ensured, and the polishing accuracy of the wrench is ensured;

[0020] (3) The wrench positive and negative detection module for detecting the positive and negative surfaces of the wrench on the turntable is arranged at the upstream of the polishing station, the reverse wrench is prevented when the operator feeds, and the polishing of the wrench is reliable and effective;

[0021] (4) The brush is arranged downstream of the polishing station, so that the surface debris of the polished wrench can be automatically cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A three-dimensional structure schematic view of the embodiment of the utility model;

[0023] Figure 2 A three-dimensional structure schematic view of the wrench feeding unit in the embodiment of the utility model;

[0024] Figure 3 A front view structure schematic view of the wrench feeding unit in the embodiment of the utility model;

[0025] Figure 4 A partial structure schematic view of the wrench feeding unit in the embodiment of the utility model;

[0026] Figure 5 A structure schematic view of the end limiting module in the embodiment of the utility model;

[0027] Figure 6 A structure schematic view of the polishing unit in the embodiment of the utility model;

[0028] Figure 7 A structure schematic view of the wrench forward and reverse detection module on the turntable in the embodiment of the utility model;

[0029] Figure 8 A structure schematic view of the wrench in the embodiment of the utility model;

[0030] Figure 9 A structure schematic view of the first forward and reverse detection module in the embodiment of the utility model;

[0031] Numerals in the drawing represent:

[0032] 100-wrench automatic polishing and polishing equipment;

[0033] 200-wrench;

[0034] 1-working platform;

[0035] 2-wrench feeding unit, 21-first driving member, 22-turntable, 221-limiting groove, 2211-profiling limiting slot, 2212-first limiting groove, 2213-second limiting groove, 23-fixed back plate, 231-first avoiding notch, 232-second avoiding notch, 24-end limiting module, 241-limiting plate, 242-limiting sliding groove, 243-position adjusting assembly, 2431-fixed support plate, 2432-sliding rail, 2433-movable plate, 2434-adjusting screw;

[0036] 3-polishing unit, 31-first polishing module, 311-second driving member, 312-supporting plate, 313-third driving member, 314-polishing wheel, 32-second polishing module;

[0037] 4-guard, 41-polishing working cavity, 42-rotary disc entrance, 43-first brush, 44-cooling liquid nozzle;

[0038] 5-second brush;

[0039] 6-wrench positive and negative detection module, 61-first positive and negative detection module, 611-pressing wheel, 612-sensing assembly, 6121-mounting bracket, 6122-induction sheet, 6123-sensing roller, 6124-sensor, 6125-spring, 62-second positive and negative detection module.

DETAILED DESCRIPTION

[0040] Example one:

[0041] Please refer to Figures 1-9 The embodiment is a wrench automatic polishing and polishing equipment 100, which comprises a work platform 1, a wrench feeding unit 2 arranged on the work platform 1 and performing annular feeding, a wrench feeding station, a positive and negative detection station, a wrench polishing station, a cleaning station and a wrench unloading station arranged in sequence around the wrench feeding unit 2, a polishing unit 3 arranged at the polishing station, and a guard 4 for enclosing the polishing station part area to form a polishing working cavity 41.

[0042] The wrench feeding unit 2 comprises a first driving member 21, a rotary disc 22 driven by the first driving member 21 to rotate around a horizontal shaft, and a fixed back plate 23 arranged close to the back of the rotary disc 22. The rotary disc 22 is a vertical disc structure, and a plurality of limiting grooves 221 are arranged on the rotary disc 22 at equal angles in the circumferential direction. The limiting grooves 221 are through from front to back, and the limiting grooves 221 comprise a profiled limiting slot 2211 shaped with the two end sections of the wrench 200. The profiled limiting slot 2211 is shaped with the two ends of the wrench 200 to accurately position the wrench 200.

[0043] The fixed back plate 23 is mainly used to block the back of the limiting groove 221 to serve as a side limiting support for the wrench 200, preventing the wrench 200 from falling out of the limiting groove 221. The fixed back plate 23 is provided with a first avoiding gap 231 avoiding the polishing station. The limiting groove 221 corresponding to the polishing station on the rotary disc 22 is not blocked by the fixed back plate 23 at the back, so that the polishing unit 3 can approach the rotary disc 22 from the front and back sides to polish the back and front of the wrench 200 at the same time.

[0044] The depth of the limiting groove 221 is less than the thickness of the wrench 200, so that after the wrench 200 is placed in the limiting groove 221, the end surface to be polished protrudes from the front side surface of the rotating disc 22, and when the wrench 200 moves to the wrench polishing station, the back surface of the wrench 200 also protrudes from the rear side surface of the rotating disc 22 because it is not blocked by the fixed back plate 23, so that the polishing unit 3 polishes one end of the wrench 200 on both sides.

[0045] Generally, both ends of the wrench 200 need to be polished, in order to meet this requirement, the limiting groove 221 includes a first limiting groove 2212 for accommodating the wrench head in the radial direction and a second limiting groove 2213 for accommodating the wrench head in the radial direction. By arranging the first limiting groove 2212 and the second limiting groove 2213, two wrenches placed in different directions can be carried at the same time. If the wrench head is placed in the first limiting groove 2212 with the wrench head outward, after rotating to the wrench polishing station, the polishing unit 3 polishes the wrench head end on both sides. If the wrench head is placed in the second limiting groove 2213 with the wrench head outward, after rotating to the wrench polishing station, the polishing unit 3 polishes the wrench head end on both sides, thereby realizing double-sided polishing of both ends of the wrench. In the present embodiment, the first limiting groove 2212 and the second limiting groove 2213 are alternately and spaced apart.

[0046] Since the wrench at the wrench polishing station is only constrained in position by the profile of the limiting groove 221, and only acts on one end of the wrench 200 during polishing, the other end of the wrench 200 is prone to lifting out of the limiting groove 221 and falling. In order to avoid this phenomenon, an end limiting module 24 is further arranged at the first avoiding gap 231 to limit the end of the wrench 200 close to the center of the rotating disc 22.

[0047] The end limiting module 24 includes a pair of limiting plates 241 located opposite to the front and rear sides of the rotating disc 22. The pair of limiting plates 241 form a limiting sliding groove 242 therebetween. When the wrench 200 moves to the first avoiding gap 231 along with the rotating disc 22, the end close to the rotating disc 22 extends into the limiting sliding groove 242, and the other end is outside the limiting sliding groove 242 and located in the limiting groove 221. When moving to the wrench polishing station, the end not extending into the limiting sliding groove 242 passes through the polishing unit 3, realizing double-sided polishing. The limiting range of the limiting sliding groove 242 covers the arc region between the two limiting grooves 221 close to the first avoiding gap 231, so as to ensure that the wrench 200 does not fall when rotating from the previous rotating position to the wrench polishing station, and also does not fall when rotating from the wrench polishing station to the next rotating position. For other rotating positions, the fixed back plate 23 body supports the back surface, so it also does not fall.

[0048] The end limiting module 24 further comprises two position adjusting assemblies 243 for adjusting the distance between the front and rear limiting plates 241. The position adjusting assembly 243 comprises a fixed support plate 2431, a slide rail 2432 extending forward and backward on the fixed support plate 2431, a movable plate 2433 sliding on the slide rail 2432, and an adjusting screw 2434 for adjusting the forward and backward position of the movable plate 2433. The limiting plate 241 is fixed on the movable plate 2433.

[0049] The polishing unit 3 comprises a first polishing module 31 and a second polishing module 32 arranged opposite to each other. A gap is arranged between the first polishing module 31 and the second polishing module 32, through which the wrench on the rotating disc 22 rotates. The first polishing module 31 and the second polishing module 32 each comprise a second driving member 311, a support plate 312 driven by the second driving member 311 to move forward and backward, a third driving member 313 fixed on the support plate 312, and a polishing wheel 314 driven by the third driving member 313 to rotate. The axial end face of the polishing wheel 314 is a polishing working surface, and the axial end faces of the two polishing wheels 314 are arranged opposite to each other and constitute the gap. When the wrench 200 enters the gap, the two polishing wheels 314 approach each other and tightly contact the front and rear surfaces of the wrench 200, and simultaneously polish both surfaces.

[0050] A polishing working cavity 41 is formed around the inside of the protective cover 4, and the two polishing wheels 314 partially extend into the polishing working cavity 41. The rotating disc 22 carries the wrench 200 to rotate into the polishing working cavity 41.

[0051] The upper part of the protective cover 4 is provided with a rotating disc inlet 42, and a first brush 43 is arranged at the rotating disc inlet 42. The first brush 43 is used to clean the surface impurities of the wrench 200 before polishing.

[0052] The embodiment further comprises a cooling liquid nozzle 44 arranged at the rotating disc inlet 42 to spray cooling liquid. The cooling liquid nozzle 44 sprays cooling liquid on the rotating disc 22, which flows downward along the rotating disc 22 to the wrench at the wrench polishing position, thereby reducing the temperature of the polishing area of the wrench during polishing.

[0053] The embodiment further comprises a second brush 5 arranged at the cleaning position and used to clean the debris on the surface of the polished wrench. The second brush 5 is arranged between the wrench polishing position and the wrench unloading position. After the polishing of the wrench 200 is completed, the wrench 200 rotates through the second brush 5, and the second brush 5 is used to clean the debris on the surface of the polished wrench.

[0054] Two sets of second brushes 5 are provided, one set is located on the front side of turntable 22, and the other set is located on the rear side of turntable 22. A second clearance notch 232 is provided on the fixed back plate 3 corresponding to the position of the second brush 5 on the rear side of turntable 22, so that the second brush 5 located on the rear side of turntable 22 can clean debris from the back of the wrench.

[0055] like Figure 8 As shown, the wrench 200 being ground in this embodiment has a large end A and a small end B. The upper surface of the large end is flush with the upper surface of the small end, but their lower surfaces have a height difference and are located in different height planes. The side where the large and small ends are flush is designated as the front, and the other opposite side is designated as the back. To ensure grinding accuracy, the grinding reference surface is preset in the control system, and the feed rates of the first grinding module 31 and the second grinding module 32 are also preset. If the wrench is fed in the wrong direction, it is easy to produce a grinding effect that is deep on one side and shallow on the other, which does not meet the design requirements. Therefore, to prevent the wrench from being fed in the wrong direction, this embodiment also includes a wrench front and back detection module 6 set at the front and back detection station. The wrench front and back detection module 6 is set between the wrench feeding station and the wrench grinding station, and is located on the front side of the turntable 22.

[0056] The wrench orientation detection module 6 includes a first orientation detection module 61 for detecting the orientation of the wrench within the first limiting groove 2212 and a second orientation detection module 62 for detecting the orientation of the wrench within the second limiting groove 2213.

[0057] Both the first forward / reverse detection module 61 and the second forward / reverse detection module 62 include a pressure roller 611 that holds one end of the wrench and a sensing component 612 that senses the height of the surface of the other end of the wrench. The sensing component 612 includes a mounting bracket 6121, a sensing plate 6122 rotatably mounted on the bottom of the mounting bracket 6121, a sensing roller 6123 rotatably mounted on one end of the sensing plate 6122 and in contact with the surface of the wrench, a sensor 6124 fixed to the mounting bracket 6121 and sensing the other end of the sensing plate 6122, and a spring 6125 that presses the end of the sensing plate 6122 near the sensing roller 6123 downwards. The pressure roller 611 is used to press one end of the wrench 200, and the sensing component 612 is used to detect the height of the surface of the other end of the wrench 200, thereby determining the forward and reverse sides of the wrench.

[0058] The wrench loading station and the wrench unloading station can be set to multiple locations as needed.

[0059] This embodiment describes a processing method for an automatic wrench grinding and polishing device, which includes the following steps:

[0060] S1. Place the wrench 200 into the first limiting groove 2212 on the turntable 22 to load the wrench 200.

[0061] S2, the wrench 200 rotates through the wrench forward-backward detection module 6 with the rotating disc 22, and whether the placement direction of the wrench 200 is correct is detected;

[0062] S3, the wrench with the correct direction rotates to the wrench polishing station with the rotating disc 22, the first polishing module 31 and the second polishing module 32 are close to each other, and the double-side polishing of the end of the wrench 200 away from the center of the rotating disc 22 is performed;

[0063] S4, after the polishing is completed, the wrench 200 rotates through the second brush 5 to clean the surface debris;

[0064] S5, the wrench 200 rotates to the wrench unloading station, and the wrench 200 is taken off.

[0065] The processing method further comprises:

[0066] S6, the taken-off wrench 200 is placed into the second limiting groove 2213 on the rotating disc 22 with the head turned over;

[0067] S7, steps S2-S5 are repeated to complete the double-side polishing of the two ends of the wrench.

[0068] Embodiment two:

[0069] The embodiment is basically the same as the structure of the first embodiment, and the difference lies in that the rotating disc 22 is driven by the first driving member 21 to rotate horizontally around the vertical shaft. The rotating disc 22 is a horizontal disc structure. The fixed back plate 23 is arranged below the rotating disc 22, the pair of limiting plates 241 are arranged on the upper and lower sides of the rotating disc 22 in an upper-lower opposite manner, the first polishing module 31 and the second polishing module 32 are arranged on the upper and lower sides of the rotating disc 22 in an upper-lower opposite manner, and the wrench forward-backward detection module 6 is arranged above the rotating disc 22.

[0070] For ordinary skilled persons in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A wrench automatic polishing and polishing device, characterized by: It includes: The wrench feeding unit comprises a first driving member, a rotating disc driven to rotate by the first driving member, and a fixed back plate arranged close to the back of the rotating disc. A plurality of hollow limiting grooves are arranged annularly on the rotating disc for accommodating wrenches. A wrench feeding station, a wrench unloading station, and a wrench polishing station are arranged around the rotating disc. The fixed back plate is provided with a first avoiding gap corresponding to the wrench polishing station. When the wrench moves to the wrench polishing station along with the rotating disc, the front and back surfaces of one end of the wrench are exposed and protrude from the surface of the rotating disc. The polishing unit is arranged at the wrench polishing station and comprises a first polishing module and a second polishing module arranged oppositely on the front and back sides of the rotating disc. The first polishing module and the second polishing module each comprise a second driving member, a support plate driven to move forward and backward by the second driving member, a third driving member fixed on the support plate, and a polishing wheel driven to rotate by the third driving member. The axial end surface of the polishing wheel is a polishing working surface. The axial end surfaces of the two polishing wheels are oppositely arranged with a gap, and the wrench on the rotating disc rotates through the gap.

2. The automatic polishing apparatus for a wrench according to claim 1, wherein The limiting groove comprises a first limiting groove for accommodating the large head of the wrench radially outward and a second limiting groove for accommodating the small head of the wrench radially outward.

3. The automatic polishing apparatus for a wrench according to claim 1, wherein: An end limiting module is arranged at the first avoiding gap to limit the end of the wrench close to the center of the rotating disc. The end limiting module comprises a pair of limiting plates oppositely arranged on the front and back sides of the rotating disc. A limiting sliding groove is formed between the pair of limiting plates. When the wrench moves to the first avoiding gap along with the rotating disc, the end close to the rotating disc extends into the limiting sliding groove, the other end is outside the limiting sliding groove, and is located in the limiting groove.

4. The automatic polishing apparatus for a wrench according to claim 1, wherein: It also comprises a protective cover for enclosing part of the polishing station. A polishing working cavity is formed around the inside of the protective cover. Two polishing wheels partially extend into the polishing working cavity. The rotating disc carrying the wrench rotates into the polishing working cavity.

5. The automatic polishing apparatus for a wrench according to claim 4, wherein: A rotating disc inlet is arranged at the upper part of the protective cover. A first brush is arranged at the rotating disc inlet.

6. The automatic polishing apparatus for a wrench according to claim 5, wherein: A cooling liquid nozzle is arranged to spray cooling liquid at the rotating disc inlet. The cooling liquid nozzle sprays cooling liquid on the rotating disc, which flows downward along the rotating disc to the wrench at the wrench polishing station.

7. The automatic polishing apparatus for a wrench according to claim 1, wherein: A second brush is arranged to clean the surface of the polished wrench. The second brush is arranged between the wrench polishing station and the wrench unloading station.

8. The automatic polishing apparatus for a wrench according to claim 1, wherein: The wrench right and left detection module is arranged between the wrench feeding station and the wrench polishing station and on the front side of the rotating disc.

9. The automatic polishing apparatus for a wrench according to claim 2, wherein: The first right and left detection module and the second right and left detection module for detecting the right and left of the wrench in the first limiting groove and the second limiting groove are further included. The first right and left detection module and the second right and left detection module for detecting the right and left of the wrench in the first limiting groove and the second limiting groove are further included.

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