Bar polishing equipment with automatic feeding and discharging functions

Abstract

The utility model discloses bar polishing equipment capable of automatically feeding and discharging, and belongs to the field of metal processing. The front side of the upper end of the base table is rotationally connected with two rotating rollers through connecting pieces, the two rotating rollers are arranged left and right, and the right end of the right rotating roller is in transmission connection with the output end of a motor installed in the base table through a synchronous belt and synchronous pulley transmission assembly. The rotating roller is used for placing and conveying bars needing to be polished; the upper end of the base table is provided with a conveying speed adjusting mechanism used for adjusting the conveying speed of bars. A polishing mechanism used for polishing bars is installed at the upper end of the base table. A discharging mechanism used for storing the polished bars is installed on the left side of the upper end of the base table. By means of the mode, the bar conveying speed can be rapidly adjusted, so that the adjusting time for the bars with different polishing degree requirements is saved; and the two ends of the bar can be polished, so that workpieces with different requirements can be polished.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metal processing, concretely relates to a bar polishing equipment of automatic feeding and discharging. BACKGROUND

[0002] The bar polishing equipment is mainly used for grinding the surface of a bar (such as a steel bar, a copper bar or other metal bars). Its purpose is to remove the oxide skin, defects and burrs on the surface of the bar to improve the smoothness and flatness of the surface of the bar. Like other metal processing equipment (such as a metal cutting machine tool and a forging equipment), the bar polishing equipment is a secondary processing equipment for metal materials, is in the processing link in the metal material processing industry chain, is one of the important equipment for realizing high-precision processing of metal bars, plays a key role in improving the quality and performance of metal bars, and plays an irreplaceable role in the post-processing stage of metal processing.

[0003] Chinese patent CN215357869U discloses a piston rod cylindrical polishing machine, which comprises a bed body, a track fixedly connected to the middle part of the bed body, a main shaft box fixedly connected to one side of the top of the track, a tailstock body slidingly connected to the other side of the top of the track, a workpiece arranged between the main shaft box and the tailstock body, a driving assembly fixedly connected to one side of the bed body, the driving assembly being arranged in parallel with the bed body, and a rough machining assembly and a finishing machining assembly connected to the output end of the driving assembly; the workpiece can be fixed through cooperation of the main shaft box and the tailstock body, the driving assembly is used for driving the rough machining assembly and the finishing machining assembly to move, the rough machining assembly is used for first machining when the workpiece is ground and polished, the finishing machining assembly is used for precisely polishing the workpiece again after the rough machining assembly finishes grinding, the polishing effect of the workpiece is improved through automatic operation, and the processing quality is ensured; however, the device still has the following problems:

[0004] 1. When the processing speed of the bar needs to be adjusted, it cannot be quickly adjusted, which wastes time and delays production.

[0005] 2. The device can only polish the outer wall of the bar and cannot polish the two ends of the bar.

[0006] Therefore, the utility model discloses a bar polishing equipment of automatic feeding and discharging to solve the above problems. UTILITY MODEL CONTENTS

[0007] In view of the above-mentioned shortcomings of the prior art, the utility model provides a bar polishing equipment of automatic feeding and discharging.

[0008] To achieve the above purpose, the utility model realizes the following technical scheme:

[0009] A bar polishing equipment of automatic feeding and discharging comprises a base table.

[0010] The upper end front side of the base is rotationally connected with two rotating rollers through connecting pieces, the two rotating rollers are arranged left and right, the right end of the right rotating roller is drivingly connected with the output end of the motor installed inside the base through a synchronous belt and synchronous pulley transmission assembly; the rotating rollers are used for placing and conveying the rod to be polished;

[0011] A conveying speed adjusting mechanism for adjusting the conveying speed of the rod is installed at the upper end of the base; two sets of conveying speed adjusting mechanisms are arranged left and right at the upper end of the base; the conveying speed adjusting mechanisms are located at the back side of the rotating rollers;

[0012] The conveying speed adjusting mechanism comprises a conveying wheel, a fixing frame and an adjusting assembly; a plurality of fixing frames are arranged at equal intervals at the upper end of the base, the rear end of the fixing frame is hingedly connected with the upper end of the base through a bearing; the front end of the fixing frame is connected with the adjusting assembly, and the fixing frame is rotationally connected with the conveying wheel through a bearing;

[0013] A polishing mechanism for polishing the rod is installed at the upper end of the base;

[0014] A discharging mechanism for accommodating the polished rod is installed at the left side of the upper end of the base.

[0015] Further, the adjusting assembly comprises a screw rod one, a rotating wheel one and a hinged block; the hinged block is rotationally connected with a rotating shaft, the front end of each fixing frame is provided with a limiting sliding groove three for limiting sliding connection with the rotating shaft of the hinged block; the screw rod one is rotationally connected with the hinged block; the ends of the two screw rods one away from each other are threadedly connected with the base through a threaded sleeve, and the ends of the two screw rods one away from each other both pass through the base; the rotating wheel one is fixedly connected with the screw rod one at the ends of the two screw rods one away from each other.

[0016] Further, the polishing mechanism comprises an outer circle polishing assembly, a size adjusting assembly and an end polishing assembly; the outer circle polishing assembly and the size adjusting assembly are connected with the base, the end polishing assembly and the size adjusting assembly are connected with the outer circle polishing assembly, the outer circle polishing assembly is used for polishing the outer circle of the rod, the size adjusting assembly is used for adjusting the position of the outer circle polishing assembly according to the size of the processed rod, and the end polishing assembly is used for polishing the two ends of the rod.

[0017] Further, the outer circle polishing assembly comprises an adjusting frame, a motor, a polishing disc, a rotating shaft and a transmission assembly; the adjusting frame is slidingly connected with the base, the lower end of the adjusting frame is connected with the size adjusting assembly, and the inner bottom of the adjusting frame is connected with the end polishing assembly; the motor is fixedly installed at the rear side of the upper end of the adjusting frame, the rotating shaft is rotationally connected with the adjusting frame at the upper side of the front end of the adjusting frame, the right end of the rotating shaft is drivingly connected with the driving end of the motor through the transmission assembly, and the left end of the rotating shaft is fixedly connected with the polishing disc; the transmission assembly adopts a synchronous belt and synchronous pulley transmission assembly.

[0018] Further, the size adjusting assembly comprises a protruding block one, a screw rod two and a rotating wheel two; the upper end of the protruding block one is fixedly connected with the lower end of the adjusting frame, a limiting sliding groove one is arranged in the upper end of the base for limiting sliding of the protruding block one, the protruding block one is connected with the screw rod two through a threaded sleeve, the front end of the screw rod two is rotatably connected with the upper side of the front end of the base, and the front end of the screw rod two is fixedly connected with the rotating wheel two through the base.

[0019] Further, the end polishing assembly comprises a sliding frame, an upper sliding rod, a lower sliding rod, a gear, a cylinder one and a front-rear adjusting assembly; the lower end of the sliding frame is connected with the front-rear adjusting assembly, the lower end of the sliding frame is slidably connected with the inner bottom of the adjusting frame, the front-rear adjusting assembly is connected with the inner bottom of the adjusting frame, the front end of the sliding frame is slidably connected with the upper sliding rod and the lower sliding rod through a sliding groove, the upper sliding rod is located above the lower sliding rod, the upper sliding rod and the lower sliding rod are both fixedly provided with a rack at the end close to each other, the upper sliding rod and the lower sliding rod are connected with the gear through the rack, and the gear is rotatably connected with the sliding frame through a bearing.

[0020] Further, the front-rear adjusting assembly comprises a protruding block two and a cylinder two; the lower end of the sliding frame is fixedly connected with the protruding block two, the inner bottom of the adjusting frame is provided with a limiting sliding groove two for limiting sliding of the protruding block two, the rear end of the sliding frame is fixedly connected with the driving end of the cylinder two, and the cylinder two is fixedly connected with the inner bottom of the adjusting frame.

[0021] Further, the discharging mechanism comprises an arc-shaped plate and a discharging table, and the arc-shaped plate and the discharging table are fixedly installed on the upper end of the base and located on the left side of the base; the discharging table is located behind the arc-shaped plate, the discharging table is fixedly connected with the arc-shaped plate, the arc-shaped plate is used for guiding the bar conveyed after polishing to enter the discharging table, and the discharging table is used for accommodating the bar polished.

[0022] Compared with the prior art, the utility model has the advantages that: 1, the utility model discloses can realize the bar conveying speed can be adjusted fast, thereby saving the adjustment time when the bar has different polishing degree requirements;

[0023] 2, the utility model discloses can realize the polishing processing of the both ends of the bar, thereby adapting to the polishing of different demand workpieces. DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0025] Figure 1 It is a perspective view of the bar polishing equipment with automatic feeding and discharging of the utility model Figure 1 ;

[0026] Figure 2 It is a front view of the bar polishing equipment with automatic feeding and discharging of the utility model

[0027] Figure 3 It is a partial perspective view after cutting along A-A direction of the bar polishing equipment with automatic feeding and discharging of the utility model Figure 2

[0028] Figure 4 It is a perspective view of the bar polishing equipment with automatic feeding and discharging of the utility model Figure 2 ;

[0029] Figure 5 It is an enlarged view of B of the bar polishing equipment with automatic feeding and discharging of the utility model Figure 4

[0030] Figure 6 It is a perspective view of the bar polishing equipment with automatic feeding and discharging of the utility model Figure 3 ;

[0031] Figure 7 It is a partial perspective view of the conveying speed adjusting mechanism of the utility model.

[0032] The reference numerals in the drawing respectively represent:

[0033] 1, base; 2, rotating roller; 3, conveying speed adjusting mechanism; 31, conveying wheel; 32, fixed frame; 33, adjusting assembly; 331, screw one; 332, rotating wheel one; 333, hinged block; 334, limiting sliding groove three; 4, polishing mechanism; 41, outer circle polishing assembly; 411, adjusting frame; 412, motor; 413, polishing disc; 414, rotating shaft; 415, transmission assembly; 42, size adjusting assembly; 421, protruding block one; 422, screw two; 423, limiting sliding groove one; 424, rotating wheel two; 43, end polishing assembly; 431, sliding frame; 432, upper sliding rod; 433, lower sliding rod; 434, gear; 435, air cylinder one; 436, protruding block two; 437, limiting sliding groove two; 438, air cylinder two; 5, discharging mechanism; 51, arc plate; 52, discharging table. DETAILED DESCRIPTION

[0034] ​​In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] In the following description, "left", "right", "front", "rear", "upper", "lower" are oriented with the perspective of the front view.

[0036] Embodiment one: in some embodiments, referring to the drawings of the specification Figures 1-7 A kind of bar polishing equipment of automatic feeding and discharging, including base 1;

[0037] The upper end front side of the base 1 is rotationally connected with two rotating rollers 2 by connecting piece, two rotating rollers 2 are arranged left and right, and the right end of the right rotating roller 2 is drivingly connected with the motor output end installed in the inside of base 1 by synchronous belt synchronous pulley transmission assembly;Rotating roller 2 is used to place and transport the bar to be polished;

[0038] The upper end of the base 1 is provided with a conveying speed adjusting mechanism 3 for adjusting the conveying speed of the bar;Two groups of conveying speed adjusting mechanisms 3 are arranged left and right on the upper end of base 1;Conveying speed adjusting mechanism 3 is located at the rear side of rotating roller 2;

[0039] The conveying speed adjusting mechanism 3 includes conveying wheel 31, fixed frame 32 and adjusting assembly 33;A plurality of fixed frames 32 are arranged at equal intervals on the upper end of base 1, and the rear end of fixed frame 32 is hinged to the upper end of base 1 by bearing;The front end of fixed frame 32 is connected with adjusting assembly 33, and fixed frame 32 is rotationally connected with conveying wheel 31 by bearing;

[0040] The upper end of the base 1 is provided with a polishing mechanism 4 for polishing the bar;

[0041] The left side of the upper end of the base 1 is provided with a discharging mechanism 5 for storing the polished bar;

[0042] In the utility model, the bar to be polished is placed on the rotating roller 2 at the right end and the conveying wheel 31 above by the operator, the motor installed in the base 1 drives the rotating roller 2 at the right end to rotate through the synchronous belt synchronous pulley transmission assembly, the rotating roller 2 at the right end drives the bar to rotate and in turn drives the conveying wheel 31 to rotate, because the conveying wheel 31 is arranged obliquely to the left, so the screw rod one 331 rotates and conveys the bar to the left; the bar is conveyed to the rotating roller 2 at the left side and the outer circle and both ends of the bar are polished by the polishing mechanism 4; the polished bar continues to convey to the left under the joint action of the polishing mechanism 4, the conveying speed adjusting mechanism 3 and the rotating roller 2, and is discharged through the discharging mechanism 5; when it is needed to change the conveying speed, only the two sets of adjusting assemblies 33 are rotated to adjust the inclination angle of the conveying wheel 31, and the conveying speed can be adjusted.

[0043] The adjusting assembly 33 comprises a screw rod one 331, a rotating wheel one 332 and a hinged block 333; the hinged block 333 is rotatably connected with a rotating shaft, the front end of each fixed frame 32 is provided with a limiting sliding groove three 334 for limiting sliding connection with the rotating shaft of the hinged block 333; the screw rod one 331 is rotatably connected with the hinged block 333; the ends of the two screw rods one 331 away from each other are threadedly connected with the base 1 through a threaded sleeve, and the ends of the two screw rods one 331 away from each other all pass through the base 1, and the rotating wheel one 332 is fixedly connected with the screw rod one 331 at the ends of the two screw rods one 331 away from each other;

[0044] In the utility model, the operator rotates the two rotating wheels one 332 and drives the screw rod one 331 to rotate, because the screw rod one 331 is threadedly connected with the base 1 through the threaded sleeve, so the screw rod one 331 moves to the left or to the right, the screw rod one 331 drives the hinged block 333 to move, the fixed frame 32 rotates around the rear end hinged point, the inclination angle of the conveying wheel 31 changes, and the conveying speed changes;

[0045] The polishing mechanism 4 comprises an outer circle polishing assembly 41, a size adjusting assembly 42 and an end polishing assembly 43; the outer circle polishing assembly 41 and the size adjusting assembly 42 are connected with the base 1, the end polishing assembly 43 and the size adjusting assembly 42 are connected with the outer circle polishing assembly 41, the outer circle polishing assembly 41 is used for polishing the outer circle of the bar, the size adjusting assembly 42 is used for adjusting the position of the outer circle polishing assembly 41 according to the size of the bar to be processed, and the end polishing assembly 43 is used for polishing both ends of the bar;

[0046] The outer circle polishing assembly 41 comprises an adjusting frame 411, a motor 412, a polishing disc 413, a rotating shaft 414 and a transmission assembly 415; the adjusting frame 411 is slidably connected with the base 1, the lower end of the adjusting frame 411 is connected with the size adjusting assembly 42, and the inner bottom and the end polishing assembly 43 of the adjusting frame 411 are connected; the motor 412 is fixedly installed on the upper rear side of the adjusting frame 411, the rotating shaft 414 is rotatably connected with the adjusting frame 411 on the upper front end of the adjusting frame 411, the right end of the rotating shaft 414 is drivingly connected with the driving end of the motor 412 through the transmission assembly 415, and the left end of the rotating shaft 414 is fixedly connected with the polishing disc 413; the transmission assembly 415 adopts a synchronous belt and synchronous pulley transmission assembly;

[0047] The size adjusting assembly 42 comprises a protruding block one 421, a screw two 422 and a rotating wheel two 424; the upper end of the protruding block one 421 is fixedly connected with the lower end of the adjusting frame 411, a limiting sliding groove one 423 is formed in the upper end of the base 1 and used for limiting sliding of the protruding block one 421, the protruding block one 421 is connected with the screw two 422 in a threaded mode, the front end of the screw two 422 is rotatably connected with the upper side of the front end of the base 1, and the front end of the screw two 422 is fixedly connected with the rotating wheel two 424 through the base 1;

[0048] The end polishing assembly 43 comprises a sliding frame 431, an upper sliding rod 432, a lower sliding rod 433, a gear 434, a cylinder one 435 and a front-rear adjusting assembly; the lower end of the sliding frame 431 is connected with the front-rear adjusting assembly, the lower end of the sliding frame 431 is slidably connected with the inner bottom of the adjusting frame 411, the front-rear adjusting assembly is connected with the inner bottom of the adjusting frame 411, the front end of the sliding frame 431 is slidably connected with the upper sliding rod 432 and the lower sliding rod 433 through sliding grooves, the upper sliding rod 432 is located above the lower sliding rod 433, the upper sliding rod 432 and the lower sliding rod 433 are fixedly installed with racks at one end close to each other, and the upper sliding rod 432 and the lower sliding rod 433 are meshedly connected through the racks and the gear 434; the gear 434 is rotatably connected with the sliding frame 431 through a bearing; the right end of the upper sliding rod 432 and the left end of the lower sliding rod 433 are fixedly connected with polishing rods, the rear end of the lower sliding rod 433 is fixedly connected with the driving end of the cylinder one 435 through a fixed plate, and the cylinder one 435 is fixedly connected with the inner bottom of the sliding frame 431;

[0049] The front-rear adjusting assembly comprises a protruding block two 436 and a cylinder two 438; the lower end of the sliding frame 431 is fixedly connected with the protruding block two 436, the inner bottom of the adjusting frame 411 is provided with a limiting sliding groove two 437 for limiting sliding of the protruding block two 436, the rear end of the sliding frame 431 is fixedly connected with the driving end of the cylinder two 438, and the cylinder two 438 is fixedly connected with the inner bottom of the adjusting frame 411;

[0050] In the utility model, the bar is conveyed to the left rotating roller 2 by the right conveying roller 2, the operator rotates the rotating wheel two 424 according to the bar diameter, the rotating wheel two 424 makes the protruding block one 421 slide in the limiting sliding slot one 423 by driving the screw rod two rotation 422, simultaneously the protruding block one 421 drives the adjusting frame 411 to slide forwards and backwards, when the polishing disc 413 abuts with the bar, stop rotating the rotating wheel two 424, at this moment the motor 412 drive end drives the polishing disc 413 to rotate through the transmission assembly 415 and the rotating shaft 414, the polishing disc 413 drives the bar to rotate, the cylinder two 438 starts to push the sliding frame 431 and drives the upper sliding rod 432 and the lower sliding rod 433 to move forwards, then the cylinder one 435 starts to drive the lower sliding rod 433 to move right, simultaneously the lower sliding rod 433 drives the upper sliding rod 432 to move left through the gear 434 transmission, at this moment the polishing bar on the upper sliding rod 432 and the lower sliding rod 433 abut with the bar, at this moment the bar polishing bar rotates and polishes the two ends of the bar, after polishing, the cylinder two 438 and the cylinder one 435 reset, the bar continues to convey to the left under the cooperation of the polishing disc 413, the rotating roller 2 and the conveying wheel 31, when the polishing disc 413 polishes the bar, the bar enters the blanking mechanism 5.

[0051] The blanking mechanism 5 includes the arc-shaped plate 51 and the discharging table 52, the arc-shaped plate 51 and the discharging table 52 are fixedly installed on the left side of the upper end of the base 1, the discharging table 52 is located behind the arc-shaped plate 51, the discharging table 52 is fixedly connected with the arc-shaped plate 51, the arc-shaped plate 51 is used for guiding the bar conveyed after polishing to enter the discharging table 52, and the discharging table 52 is used for accommodating the bar polished.

[0052] The above embodiment is only used to illustrate the technical scheme of the utility model, and is not limited to it; although the utility model is described in detail with reference to the foregoing embodiment, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing embodiment, or make equivalent replacement to part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model embodiments.

Claims

1. A bar polishing device with automatic loading and unloading, comprising a base (1), characterized in that: It also includes rotating roller (2), conveying speed adjusting mechanism (3), polishing mechanism (4) and discharging mechanism (5); The upper end of the base (1) is rotationally connected with two rotating rollers (2) through connecting pieces, and the two rotating rollers (2) are arranged left and right; the right end of the right rotating roller (2) is drivingly connected with the output end of the motor installed in the base (1) through a synchronous belt and synchronous pulley transmission assembly; the rotating roller (2) is used for placing and conveying the rod to be polished; The upper end of the base (1) is provided with conveying speed adjusting mechanisms (3) for adjusting the conveying speed of the rod; two groups of conveying speed adjusting mechanisms (3) are arranged left and right on the upper end of the base (1); the conveying speed adjusting mechanism (3) is located at the rear side of the rotating roller (2); The conveying speed adjusting mechanism (3) comprises a conveying wheel (31), a fixed frame (32) and an adjusting assembly (33); a plurality of fixed frames (32) are arranged at equal intervals on the upper end of the base (1), and the rear end of the fixed frame (32) is hingedly connected with the upper end of the base (1) through a bearing; the front end of the fixed frame (32) is connected with the adjusting assembly (33), and the fixed frame (32) is rotationally connected with the conveying wheel (31) through a bearing; The upper end of the base (1) is provided with a polishing mechanism (4) for polishing the rod; The upper left end of the base (1) is provided with a discharging mechanism (5) for storing the polished rod.

2. The apparatus according to claim 1, wherein The adjusting assembly (33) comprises a screw rod one (331), a rotating wheel one (332) and a hinged block (333); the hinged block (333) is rotationally connected with a rotating shaft, and the front end of each fixed frame (32) is provided with a limiting sliding groove three (334) for limiting sliding connection with the rotating shaft of the hinged block (333); the screw rod one (331) is rotationally connected with the hinged block (333); the ends of the two screw rod ones (331) away from each other are threadedly connected with the base (1) through a threaded sleeve, and the ends of the two screw rod ones (331) away from each other both pass through the base (1), and the rotating wheel one (332) is fixedly connected with the screw rod one (331) at the ends of the two screw rod ones (331) away from each other.

3. The apparatus according to claim 1, wherein The polishing mechanism (4) comprises an outer circle polishing assembly (41), a size adjusting assembly (42) and an end polishing assembly (43); the outer circle polishing assembly (41) and the size adjusting assembly (42) are connected with the base (1), the end polishing assembly (43) and the size adjusting assembly (42) are connected with the outer circle polishing assembly (41), the outer circle polishing assembly (41) is used for polishing the outer circle of the rod, the size adjusting assembly (42) is used for adjusting the position of the outer circle polishing assembly (41) according to the size of the processed rod, and the end polishing assembly (43) is used for polishing the two ends of the rod.

4. The apparatus according to claim 3, wherein The outer circle polishing assembly (41) comprises an adjusting frame (411), a motor (412), a polishing disc (413), a rotating shaft (414) and a transmission assembly (415); the adjusting frame (411) is slidably connected with the base (1), the lower end of the adjusting frame (411) is connected with the size adjusting assembly (42), and the inner bottom of the adjusting frame (411) is connected with the end polishing assembly (43); the motor (412) is fixedly installed on the upper end of the rear side of the adjusting frame (411), the rotating shaft (414) is rotatably connected with the adjusting frame (411) on the upper side of the front end of the adjusting frame (411), the right end of the rotating shaft (414) is drivingly connected with the driving end of the motor (412) through the transmission assembly (415), and the left end of the rotating shaft (414) is fixedly connected with the polishing disc (413); the transmission assembly (415) is a synchronous belt and synchronous pulley transmission assembly.

5. The apparatus of claim 4, wherein, The size adjusting assembly (42) comprises a protruding block one (421), a screw rod two (422) and a rotating wheel two (424); the upper end of the protruding block one (421) is fixedly connected with the lower end of the adjusting frame (411), the upper end of the base (1) is provided with a limiting sliding groove one (423) for limiting the sliding of the protruding block one (421), the protruding block one (421) is threadedly connected with the screw rod two (422), the front end of the screw rod two (422) is rotatably connected with the upper side of the front end of the base (1), and the front end of the screw rod two (422) penetrates through the base (1) and is fixedly connected with the rotating wheel two (424).

6. The apparatus of claim 4, wherein, The end polishing assembly (43) comprises a sliding frame (431), an upper sliding rod (432), a lower sliding rod (433), a gear (434), a cylinder one (435) and a front-rear adjusting assembly; the lower end of the sliding frame (431) is connected with the front-rear adjusting assembly, the lower end of the sliding frame (431) is slidably connected with the inner bottom of the adjusting frame (411), the front-rear adjusting assembly is connected with the inner bottom of the adjusting frame (411), the front end of the inner side of the sliding frame (431) is slidably connected with the upper sliding rod (432) and the lower sliding rod (433) through a sliding groove, the upper sliding rod (432) is located above the lower sliding rod (433), the upper sliding rod (432) and the lower sliding rod (433) are both fixedly installed with a rack at one end close to each other, the upper sliding rod (432) and the lower sliding rod (433) are meshedly connected with the gear (434) through the rack, and the gear (434) is rotatably connected with the sliding frame (431) through a bearing; the right end of the upper sliding rod (432) and the left end of the lower sliding rod (433) are both fixedly connected with a polishing rod, the rear end of the lower sliding rod (433) is fixedly connected with the driving end of the cylinder one (435) through a fixed plate, and the cylinder one (435) is fixedly connected with the inner bottom of the sliding frame (431).

7. The apparatus of claim 6, wherein, The front-rear adjusting assembly comprises a protruding block two (436) and a cylinder two (438); the lower end of the sliding frame (431) is fixedly connected with the protruding block two (436), the inner bottom of the adjusting frame (411) is provided with a limiting sliding groove two (437) for limiting the sliding of the protruding block two (436), the rear end of the sliding frame (431) is fixedly connected with the driving end of the cylinder two (438), and the cylinder two (438) is fixedly connected with the inner bottom of the adjusting frame (411).

8. The apparatus of claim 1, wherein, The unloading mechanism (5) comprises an arc-shaped plate (51) and a discharging table (52), both of which are fixedly installed on the left side of the upper end of the base (1), the discharging table (52) is located behind the arc-shaped plate (51), the discharging table (52) is fixedly connected with the arc-shaped plate (51), the arc-shaped plate (51) is used for guiding the polished rod to enter the discharging table (52), and the discharging table (52) is used for accommodating the polished rod.

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