A reciprocating hydraulic light drawing machine

Abstract

The application discloses a kind of reciprocating hydraulic tensioning machine, including rack, installation panel, for clamping workpiece workpiece positioning fixture, for driving workpiece positioning fixture lifting to adjust workpiece position positioning fixture lifting mechanism, for workpiece is polished by tensioning polishing belt, two for installing polishing belt polishing belt pressure mechanism, for driving polishing belt reciprocating movement to realize the tensioning of workpiece polishing belt translation mechanism, and hydraulic station, positioning fixture lifting mechanism includes slide bar mounting plate, first slide bar, first installation support and lifting hydraulic cylinder, polishing belt translation mechanism includes double-out translation hydraulic cylinder and translation slide base.The application can realize the automatic tensioning of workpiece, little manual intervention, high production efficiency, using lifting hydraulic cylinder drives workpiece positioning fixture lifting, positioning precision is high, it is convenient to control and adjust polishing pressure and workpiece position, and the polishing quality and consistency of finished product are good, and service life is long.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing equipment, more particularly to a reciprocating hydraulic light pulling machine. BACKGROUND

[0002] The existing light pulling machine (also known as a polishing machine) generally uses a polishing wheel or a polishing belt to polish the workpiece, but in actual production, the polishing wheel has a small contact area with the workpiece, and the consistency of the polishing surface is poor when processing large workpieces, while the polishing belt can process larger workpieces, such as a sand belt polishing machine disclosed in Chinese patent (publication number: CN103978416A), which sets a driving wheel, a driven wheel and a polishing belt on the workbench to polish the workpiece, but the rotary polishing belt is easy to deviate when rotating, which will contact the polishing machine at high speed and cause wear of the polishing machine, greatly reducing the service life of the polishing machine, and the workpiece needs to be held by the operator in the patent technology, which has more manual intervention and high labor intensity, and the polishing pressure and the workpiece position are manually controlled by the operator, which cannot be accurately adjusted, reducing the polishing quality and consistency of the finished product. SUMMARY

[0003] The present application aims to overcome the above-mentioned defects in the prior art, and provides a reciprocating hydraulic light pulling machine, which can automatically pull the workpiece, has less manual intervention, high production efficiency, uses a lifting hydraulic cylinder to drive the workpiece positioning clamp to lift, has high positioning accuracy, and is convenient for controlling and adjusting the polishing pressure and the workpiece position, and has good polishing quality and consistency of the finished product.

[0004] To achieve the above object, the device comprises a rack, a mounting panel, a workpiece positioning clamp for clamping a workpiece, a positioning clamp lifting mechanism for lifting the workpiece positioning clamp to adjust the position of the workpiece, a polishing belt for polishing the workpiece, two polishing belt pressing mechanisms for mounting the polishing belt, a polishing belt translation mechanism for moving the polishing belt back and forth to polish the workpiece, and a hydraulic station. The mounting panel is horizontally mounted on the top of the rack. The positioning clamp lifting mechanism comprises a slide rod mounting plate, a first slide rod, a first mounting bracket, and a lifting hydraulic cylinder. The first mounting bracket is mounted on the bottom surface of the mounting panel. The lifting hydraulic cylinder is upwardly mounted on the bottom of the first mounting bracket. The slide rod mounting plate is arranged above the bottom of the first mounting bracket and connected with the output rod of the lifting hydraulic cylinder. The first slide rod is provided with a plurality of vertical rods mounted on the top surface of the slide rod mounting plate. The workpiece positioning clamp is arranged above the mounting panel. The top of each of the first slide rods is connected with the bottom of the workpiece positioning clamp after passing through a plurality of through holes formed on the mounting panel. The polishing belt translation mechanism is mounted on the mounting panel. The polishing belt translation mechanism comprises a double-output translation hydraulic cylinder and a translation slide. The translation slide is provided with two translation slides arranged on the two sides of the workpiece positioning clamp. The two polishing belt pressing mechanisms are arranged on the two sides of the workpiece positioning clamp and mounted on the corresponding translation slides. The output rod of the double-output translation hydraulic cylinder is connected with the two translation slides to realize the linkage of the two translation slides. The two ends of the polishing belt are mounted on the clamping parts of the two polishing belt pressing mechanisms. The positioning clamp lifting mechanism can lift the workpiece positioning clamp to change the distance between the workpiece positioning clamp and the polishing belt to adjust the position of the workpiece. The polishing belt translation mechanism can move one polishing belt pressing mechanism close to the workpiece positioning clamp while moving the other polishing belt pressing mechanism away from the workpiece positioning clamp, and the movement is repeated in turn, so as to realize the sliding contact of the polishing belt with the workpiece clamped on the workpiece positioning clamp to polish the workpiece. The lifting hydraulic cylinder is connected with the hydraulic station through an oil circuit.

[0005] As a preferred embodiment, the workpiece positioning clamp is provided as a bench vice.

[0006] As a preferred embodiment, the positioning clamp lifting mechanism further comprises a first sliding sleeve, a second slide rod, and a second sliding sleeve. The first sliding sleeve is provided with a plurality of sleeves arranged on the corresponding first slide rods. The first sliding sleeve is mounted on the bottom surface of the mounting panel. The second slide rod is provided with a plurality of vertical rods mounted on the bottom surface of the slide rod mounting plate. The bottom of each of the second slide rods is extended downwardly to the bottom of the first mounting bracket after passing through a plurality of through holes formed on the bottom of the first mounting bracket. The second sliding sleeve is provided with a plurality of sleeves arranged on the corresponding second slide rods. The second sliding sleeve is mounted on the bottom of the first mounting bracket.

[0007] As a preferred implementation form, the two polishing belt pressing mechanisms each comprise a second mounting bracket, a fixed block translation hydraulic cylinder, a first polishing belt fixed block and a second polishing belt fixed block, the second mounting bracket is vertically mounted on the output site of the polishing belt translation mechanism, the fixed block translation hydraulic cylinder is mounted on the top side of the second mounting bracket, the first polishing belt fixed block is mounted on the other side of the top of the second mounting bracket, the second polishing belt fixed block is mounted on the output rod of the fixed block translation hydraulic cylinder through a connecting assembly, one end of the polishing belt is located between the first polishing belt fixed block and the second polishing belt fixed block, and the fixed block translation hydraulic cylinder can drive the second polishing belt fixed block to move towards the first polishing belt fixed block to realize clamping positioning of the polishing belt.

[0008] As a preferred implementation form, the connecting assembly comprises a rotary connecting seat, a rotary connecting block, two adjusting springs and two adjusting bolts, the rotary connecting seat is mounted on the end face of the second polishing belt fixed block away from the first polishing belt fixed block, the side face of the rotary connecting seat is provided with a rotary hole, one end of the middle part of the rotary connecting block is connected with the output rod of the fixed block translation hydraulic cylinder, the other end of the middle part of the rotary connecting block is provided with a rotary shaft and is connected with the rotary connecting seat in a rotary manner, the axial direction of the rotary shaft is parallel to the width direction of the rotary connecting block, two bolt mounting holes are further provided on the rotary connecting block, the axial directions of the two bolt mounting holes are both perpendicular to the axial direction of the rotary shaft, the two bolt mounting holes are respectively arranged at the two ends of the rotary connecting block along the length direction of the rotary connecting block, corresponding threaded holes are provided at the corresponding positions of the second polishing belt fixed block, the tail ends of the two adjusting bolts are respectively screwed into the corresponding threaded holes after passing through the respective corresponding bolt mounting holes, and the two adjusting springs are respectively sleeved on the periphery of the two adjusting bolts and located between the rotary connecting block and the second polishing belt fixed block.

[0009] As a preferred implementation form, the opposite end faces of the first polishing belt fixed block and the second polishing belt fixed block are respectively provided with a fixed groove and a fixed protrusion, and an anti-skid protrusion is further provided on the end face of the fixed protrusion.

[0010] As a preferred implementation form, the polishing belt translation mechanism further comprises translation sliding rails, a plurality of translation sliding rails are provided, the plurality of translation sliding rails are all mounted on the top of the rack and are respectively symmetrically arranged on the left and right sides of the workpiece positioning clamp, each translation sliding rail is parallel to the polishing belt, two translation sliding seats are respectively and translationally mounted on the corresponding translation sliding rails on the left and right sides of the workpiece positioning clamp, and the double-output translation hydraulic cylinder is mounted on the bottom face of the mounting panel.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] The present application has simple structure, reasonable design, can realize automatic pulling of workpieces, has less manual intervention, high production efficiency, adopts the lifting hydraulic cylinder to drive the workpiece positioning fixture to lift, has high positioning precision, facilitates control and adjustment of polishing pressure and workpiece position, has good polishing quality and consistency of finished products, and through adoption of the double-out translation hydraulic cylinder to drive the polishing belt to move back and forth, the response is rapid and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, below the drawings needed to be used in the embodiments or the prior art description will be briefly introduced, obviously, the drawings in the following description are some embodiments of the present application, and for the ordinary skilled in the art, other drawings can also be obtained without creative labor.

[0014] Figure 1 is a structure schematic diagram of a reciprocating hydraulic light pulling machine provided by the embodiment of the present application;

[0015] Figure 2 is a structure schematic diagram of part of components of a reciprocating hydraulic light pulling machine provided by the embodiment of the present application;

[0016] Figure 3 is a structure schematic diagram of a polishing belt pressing mechanism provided by the embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, below the technical solutions in the embodiments of the present application will be clearly and completely described with the drawings in the embodiments of the present application, obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0018] Please refer to Figure 1 The embodiment of the present application provides a reciprocating hydraulic light pulling machine, which comprises a rack 1, a mounting panel 2, a workpiece positioning fixture 3 for clamping a workpiece, a positioning fixture lifting mechanism 4 for driving the workpiece positioning fixture 3 to lift to adjust the position of the workpiece, a polishing belt 5 for pulling and polishing the workpiece, two polishing belt pressing mechanisms 6 for mounting the polishing belt 5, a polishing belt translation mechanism 7 for driving the polishing belt 5 to move back and forth to realize pulling of the workpiece, and a hydraulic station 8. The components of the embodiment will be described in detail below with reference to the drawings.

[0019] As Figure 1 and Figure 2As shown, the mounting panel 2 is horizontally mounted on the top of the rack 1, and the positioning clamp lifting mechanism 4 is arranged inside the rack 1, which in this embodiment includes a first mounting bracket 46, a slide rod mounting plate 41, a first slide rod 42, a first slide sleeve 43, a second slide rod 44, a second slide sleeve 45 and a lifting hydraulic cylinder 47, the first mounting bracket 46 is mounted on the bottom surface of the mounting panel 2, the lifting hydraulic cylinder 47 is upwardly mounted on the bottom of the first mounting bracket 46, the slide rod mounting plate 41 is arranged above the bottom of the first mounting bracket 46 and connected with the output rod of the lifting hydraulic cylinder 47, the first slide rod 42 is provided with a plurality of and vertically mounted on the top surface of the slide rod mounting plate 41, the top of the plurality of first slide rods 42 is upwardly connected with the bottom of the workpiece positioning clamp 3 after passing through a plurality of through holes opened on the mounting panel 2, the first slide sleeve 43 is provided with a plurality of and respectively sleeved on the corresponding first slide rod 42, which can improve the stability of the workpiece positioning clamp 3 during lifting, the second slide rod 44 is provided with a plurality of and vertically mounted on the bottom surface of the slide rod mounting plate 41, the bottom of the plurality of second slide rods 44 is downwardly extended below the first mounting bracket 46 after passing through a plurality of through holes opened on the bottom of the first mounting bracket 46, the second slide sleeve 45 is provided with a plurality of and respectively sleeved on the corresponding second slide rod 44, and the plurality of second slide sleeves 45 are mounted on the bottom of the first mounting bracket 46, which can improve the stability of the slide rod mounting plate 41 during lifting.

[0020] In this embodiment, the workpiece positioning clamp 3 is provided as a bench clamp, and of course, the corresponding positioning clamp can be replaced according to the shape and material of the processed workpiece.

[0021] As shown in Figure 2 and Figure 3 The two polishing belt pressing mechanisms 6 each include a second mounting bracket 61, a fixed block translation hydraulic cylinder 62, a first polishing belt fixed block 63 and a second polishing belt fixed block 64, in specific implementation, the two second mounting brackets 61 are respectively vertically mounted on the top surface of the two translation sliding seats 72 of the polishing belt translation mechanism 7, the fixed block translation hydraulic cylinder 62 is mounted on one side of the top of the second mounting bracket 61, the first polishing belt fixed block 63 is mounted on the other side of the top of the second mounting bracket 61, and the second polishing belt fixed block 64 is mounted on the output rod of the fixed block translation hydraulic cylinder 62 through a connecting assembly, in specific implementation, the two ends of the polishing belt 5 are respectively placed between the corresponding first polishing belt fixed block 63 and second polishing belt fixed block 64, so that the fixed block translation hydraulic cylinder 62 can clamp and fix the polishing belt 5 when driving the second polishing belt fixed block 64 to move towards the first polishing belt fixed block 63.

[0022] In the embodiment, the connecting assembly comprises a rotating connecting seat 65, a rotating connecting block 66, two adjusting springs 67 and two adjusting bolts 68. In actual implementation, the rotating connecting seat 65 is installed on the end face of the second polishing belt fixing block 64 away from the first polishing belt fixing block 63, a rotating hole 651 is formed in the side face of the rotating connecting seat 65, one end of the middle part of the rotating connecting block 66 is connected with the output rod of the fixing block translation hydraulic cylinder 62, the other end of the middle part of the rotating connecting block 66 is provided with a rotating shaft 661, so that the one end of the middle part of the rotating connecting block 66 is connected with the rotating connecting seat 65 in a manner that the one end of the middle part of the rotating connecting block 66 is rotatably connected in the rotating hole 651 through the rotating shaft 661, the axial direction of the rotating shaft 661 is parallel to the width direction of the rotating connecting block 66, two bolt mounting holes 662 are further provided on the rotating connecting block 66, the axial directions of the two bolt mounting holes 662 are both perpendicular to the axial direction of the rotating shaft 661, the two bolt mounting holes 662 are respectively arranged at the two ends of the rotating connecting block 66 along the length direction of the rotating connecting block 66, two threaded holes 642 are formed in the second polishing belt fixing block 64 at the opposite positions, so that the tail ends of the two adjusting bolts 68 are respectively screwed into the corresponding threaded holes 642 after passing through the corresponding bolt mounting holes 662, and the two adjusting springs 67 are respectively sleeved on the periphery of the two adjusting bolts 68 and located between the rotating connecting block 66 and the first polishing belt fixing block 63. When the polishing belt 5 is installed, the first polishing belt fixing block 63 and the second polishing belt fixing block 64 can be kept parallel by rotating the two adjusting bolts 68, so as to increase the contact area between the first polishing belt fixing block 63, the second polishing belt fixing block 64 and the polishing belt 5, thereby improving the stability of the connection.

[0023] Preferably, the fixed recess 631 and the fixed protrusion 641 are respectively arranged on the opposite end faces of the first polishing belt fixing block 63 and the second polishing belt fixing block 64, and the anti-skid protrusion 6411 is arranged on the end face of the fixed protrusion 641, so as to further improve the stability of the connection and effectively prevent the polishing belt 5 from falling off when moving back and forth.

[0024] As shown in Figure 2 The polishing belt translation mechanism 7 comprises a double-output translation hydraulic cylinder 71, a translation slide 72 and a plurality of translation slides 73. The plurality of translation slides 73 are all installed on the top of the rack 1 and respectively arranged symmetrically on the left and right sides of the workpiece positioning clamp 3, each translation slide 73 is parallel to the polishing belt 5, the translation slide 72 is provided with two translation slides 73 and respectively translationally installed on the corresponding translation slides 73, the double-output translation hydraulic cylinder 71 is installed on the bottom face of the installation panel 2, and the two ends of the output rod of the double-output translation hydraulic cylinder 71 are respectively connected with the two translation slides 72.

[0025] In the specific implementation, the lifting hydraulic cylinder 47, the fixed block translation hydraulic cylinder 62 and the double-outlet translation hydraulic cylinder 71 are communicated with the hydraulic station 8 through oil lines, so that the reciprocating hydraulic drawbench is quick in response, stable in operation, convenient to use and easy to maintain.

[0026] In the work, the two ends of the polishing belt 5 are respectively installed on the two polishing belt pressing mechanisms 6, then the workpiece is clamped on the workpiece positioning clamp 3, the operator controls the positioning clamp lifting mechanism 4 to rise so that the workpiece is in contact with the polishing belt 5, and then the polishing belt translation mechanism 7 drives the polishing belt 5 to move back and forth to realize the drawlight work on the workpiece after the position of the workpiece is further adjusted, and the position of the workpiece can be adjusted at any time by controlling the positioning clamp lifting mechanism 4 to drive the workpiece positioning clamp 3 to rise and fall during the machining process. In the working process, the polishing belt 5 will not slide with the drawbench, which can effectively prevent the drawbench from being worn by the polishing belt 5, and greatly improve the service life of the drawbench.

[0027] In summary, the structure of the present application is simple and reasonable, which can realize automatic drawlight of the workpiece, has less manual intervention, high production efficiency, high positioning precision of the workpiece positioning clamp driven by the lifting hydraulic cylinder, convenient control and adjustment of the polishing pressure and the position of the workpiece, good polishing quality and consistency of the finished product, and rapid response and convenient use of the polishing belt driven by the double-outlet translation hydraulic cylinder to move back and forth.

[0028] The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited by the above embodiments, and any changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principles of the present application should be equivalent replacement methods, which are all included in the protection scope of the present application.

Claims

1. A reciprocating hydraulic stretcher, characterized by: The utility model provides a kind of polishing machine, including rack (1), installation panel (2), workpiece positioning fixture (3) for clamping workpiece, positioning fixture lifting mechanism (4) for driving workpiece positioning fixture (3) to lift to adjust workpiece position, polishing belt (5) for carrying out pull polishing to workpiece, two polishing belt pressure mechanism (6) for installing polishing belt (5), polishing belt translation mechanism (7) for driving polishing belt (5) to move back and forth to realize the pull of workpiece, and hydraulic station (8), the installation panel (2) is horizontally installed on the top of rack (1), the positioning fixture lifting mechanism (4) includes slide rod mounting plate (41), first slide rod (42), first installation support (46) and lifting hydraulic cylinder (47), the first installation support (46) is installed on the bottom surface of installation panel (2), the lifting hydraulic cylinder (47) is upwards installed on the bottom of first installation support (46), the slide rod mounting plate (41) is arranged above the bottom of first installation support (46) and is connected with the output rod of lifting hydraulic cylinder (47), the first slide rod (42) is equipped with several and is vertically installed on the top surface of slide rod mounting plate (41), the workpiece positioning fixture (3) is arranged above installation panel (2), the top of several first slide rods (42) is all upwards connected with the bottom of workpiece positioning fixture (3) after passing through several through holes opened on installation panel (2), the polishing belt translation mechanism (7) includes double-out translation hydraulic cylinder (71) and translation slide (72), the translation slide (72) is equipped with two and is respectively permutably arranged workpiece positioning fixture (3) two sides, two polishing belt pressure mechanisms (6) are located workpiece positioning fixture (3) two sides and are respectively installed on corresponding translation slide (72), the output rod of double-out translation hydraulic cylinder (71) two ends are respectively connected with two translation slides (72) to realize the linkage of two translation slides (72), the both ends of polishing belt (5) are respectively installed on the clamping position of two polishing belt pressure mechanisms (6), the positioning fixture lifting mechanism (4) can drive workpiece positioning fixture (3) to lift, so as to change the distance between workpiece positioning fixture (3) and polishing belt (5) to adjust workpiece position, the polishing belt translation mechanism (7) can drive one polishing belt pressure mechanism (6) to approach workpiece positioning fixture (3) while driving another polishing belt pressure mechanism (6) to move away from workpiece positioning fixture (3) and in turn repeatedly, so as to drive polishing belt (5) and workpiece clamped on workpiece positioning fixture (3) to slide contact back and forth to realize the pull of workpiece, the lifting hydraulic cylinder (47) is communicated with hydraulic station (8) by oil circuit; The workpiece positioning fixture (3) is arranged as a bench vice.

2. A reciprocating hydraulic drawing machine according to claim 1, characterized in that: The positioning clamp lifting mechanism (4) further comprises a first sliding sleeve (43), a second sliding rod (44) and a second sliding sleeve (45), the first sliding sleeve (43) is provided with a plurality of sleeves respectively arranged on the corresponding first sliding rod (42), the plurality of first sliding sleeves (43) are installed on the bottom surface of the installation panel (2), the second sliding rod (44) is provided with a plurality of vertical installations on the bottom surface of the sliding rod installation plate (41), the bottom of the plurality of second sliding rods (44) is downwardly extended to the below of the first installation support (46) through the plurality of through holes on the bottom of the first installation support (46), and the second sliding sleeve (45) is provided with a plurality of sleeves respectively arranged on the corresponding second sliding rod (44), and the plurality of second sliding sleeves (45) are installed on the bottom of the first installation support (46).

3. The reciprocating hydraulic drawing machine according to claim 1, characterized in that: The two polishing belt pressing mechanisms (6) each comprise a second installation support (61), a fixed block translation hydraulic cylinder (62), a first polishing belt fixed block (63) and a second polishing belt fixed block (64), the second installation support (61) is vertically installed on the output position of the polishing belt translation mechanism (7), the fixed block translation hydraulic cylinder (62) is installed on one side of the top of the second installation support (61), the first polishing belt fixed block (63) is installed on the other side of the top of the second installation support (61), the second polishing belt fixed block (64) is installed on the output rod of the fixed block translation hydraulic cylinder (62) through a connecting assembly, one end of the polishing belt (5) is located between the first polishing belt fixed block (63) and the second polishing belt fixed block (64), and the fixed block translation hydraulic cylinder (62) can drive the second polishing belt fixed block (64) to move towards the first polishing belt fixed block (63) to realize clamping and positioning of the polishing belt (5).

4. A reciprocating hydraulic drawing machine according to claim 3, wherein: The connecting assembly comprises a rotating connecting seat (65), a rotating connecting block (66), two adjusting springs (67) and two adjusting bolts (68), the rotating connecting seat (65) is installed on the end face of the second polishing belt fixing block (64) away from the first polishing belt fixing block (63), a rotating hole (651) is formed in the side face of the rotating connecting seat (65), one end of the middle part of the rotating connecting block (66) is connected with the output rod of the fixing block translation hydraulic cylinder (62), the other end of the middle part of the rotating connecting block (66) is provided with a rotating shaft (661) and is connected with the rotating connecting seat (65) in a rotating manner through the rotating shaft (661), the axial direction of the rotating shaft (661) is parallel to the width direction of the rotating connecting block (66), two bolt mounting holes (662) are further provided on the rotating connecting block (66), the axial directions of the two bolt mounting holes (662) are both perpendicular to the axial direction of the rotating shaft (661), the two bolt mounting holes (662) are respectively arranged at the two ends of the rotating connecting block (66) along the length direction of the rotating connecting block (66), two threaded holes (642) are formed in the corresponding positions of the second polishing belt fixing block (64), the tail ends of the two adjusting bolts (68) are respectively screwed into the corresponding threaded holes (642) after passing through the corresponding bolt mounting holes (662), and the two adjusting springs (67) are respectively sleeved on the periphery of the two adjusting bolts (68) and located between the rotating connecting block (66) and the second polishing belt fixing block (64).

5. The reciprocating hydraulic drawing machine according to claim 3, characterized in that: The opposite end faces of the first polishing belt fixing block (63) and the second polishing belt fixing block (64) are respectively provided with a fixed groove (631) and a fixed protrusion (641), and an anti-skid protrusion (6411) is further arranged on the end face of the fixed protrusion (641).

6. The reciprocating hydraulic drawing machine according to claim 1, characterized in that: The polishing belt translation mechanism (7) further comprises translation sliding rails (73), a plurality of translation sliding rails (73) are arranged, the plurality of translation sliding rails (73) are all installed on the top of the rack (1) and are respectively and symmetrically arranged on the left and right sides of the workpiece positioning clamp (3), each translation sliding rail (73) is parallel to the polishing belt (5), and the two translation sliding blocks (72) are respectively and translationally installed on the corresponding translation sliding rails (73) on the left and right sides of the workpiece positioning clamp (3), and the double-outlet translation hydraulic cylinder (71) is installed on the bottom face of the mounting panel (2).

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