CN221248376U - Flat grinding and polishing clamp for mobile phone glass cover plate - Google Patents

Abstract

The utility model provides a flat grinding and polishing clamp for a mobile phone glass cover plate, which relates to the technical field of mobile phone glass cover plate processing and comprises a base and a clamping mechanism, wherein a control box is arranged on one side of the base, a base column is welded at the upper end of the base, the clamping mechanism is arranged on one side of the base column, the clamping mechanism comprises a lifting piece, a rotating piece, a main clamping piece, a rotating piece and an elastic piece, the lifting piece is arranged in the base column, the rotating piece is arranged on one side of the lifting piece, the main clamping piece is arranged on the other side of the rotating piece, and the rotating piece is arranged on the other end of the main clamping seat. This cell-phone glass apron flat grinding polishing anchor clamps through fixture's setting, can the cell-phone glass apron of centre gripping different thickness, still can select the centre gripping mode according to the polishing demand, when needs carry out edge treatment, can adopt the mode that the face pressed from both sides, when needs carry out face treatment, can adopt the mode of edge clamping, application scope is wider.

Description

Flat grinding and polishing clamp for mobile phone glass cover plate

Technical Field

The utility model relates to the technical field of mobile phone glass cover plate processing, in particular to a flat grinding and polishing clamp for a mobile phone glass cover plate.

Background

The utility model provides a cell-phone glass apron grinds polishing jig, is a instrument equipment that is arranged in the cell-phone manufacturing process for level, polish and polish the surface of cell-phone glass apron, cell-phone glass apron is the glass panel of installing at the cell-phone back, commonly in modern smart mobile phone design, and cell-phone glass apron grinds polishing jig's effect is the surface that makes the glass apron level, removes the flaw and the mar on surface to promote its glossiness and feel, and anchor clamps are usually by a pair of anchor clamps of steel or plastics, are used for fixed cell-phone glass apron, keep its stability.

Through searching, the utility model with the patent number of CN213136433U provides a mobile phone glass cover plate processing clamp, and relates to the technical field of mobile phone production. The utility model comprises a clamping box, wherein a fixing frame is rotatably matched with the inner top of the clamping box; the fixing frame comprises a T-shaped frame and a cover frame which are mutually hinged; the T-shaped frame and the two opposite inner sides of the cover frame are respectively matched with a clamping plate in a rotating way, the centers of the two opposite inner sides of the two clamping plates are respectively fixed with a clamping pad, and the outer edges of the two opposite inner sides of the two clamping plates, which are positioned on the clamping pads, are fixedly provided with anti-slip rings. According to the utility model, the two surfaces of the glass cover plate of the mobile phone are clamped by the two symmetrical clamping plates, and the clamping pads are matched with the anti-slip rings, so that the fixing of the positions of the glass cover plate is ensured, and the processing of the glass cover plate of the mobile phone is facilitated; through upset T shape frame, be convenient for carry out the two-sided processing of cell-phone glass apron, through rotating two splint, the processing of cell-phone glass apron border department of being convenient for, convenient operation has improved the processing rate of cell-phone glass apron. But this anchor clamps can only carry out the face to cell-phone glass apron and press from both sides, then carry out the edge treatment, when carrying out the face treatment, this anchor clamps will not be used, and when carrying out the edge treatment, the rotation of cell-phone glass apron can be influenced to its one side's T type frame and cover frame to influence subsequent processing, secondly this structure is comparatively fixed, can only centre gripping fixed thickness's cell-phone glass apron, and application scope is comparatively limited.

Thus, we provide a flat grinding and polishing clamp for a glass cover plate of a mobile phone.

Disclosure of utility model

The utility model aims to provide a flat grinding and polishing clamp for a mobile phone glass cover plate, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the flat grinding and polishing clamp for the mobile phone glass cover plate comprises a base and a clamping mechanism, wherein a control box is arranged on one side of the base, a base column is welded at the upper end of the base, and the clamping mechanism is arranged on one side of the base column;

The clamping mechanism comprises a lifting piece, a rotating piece, a main clamping piece, a autorotation piece and an elastic piece, wherein the lifting piece is arranged in the base column, the rotating piece is arranged on one side of the lifting piece, the main clamping piece is arranged on the other side of the rotating piece, the autorotation piece is arranged on the other end of the main clamping seat, and the elastic piece is arranged on one side of the autorotation piece.

Preferably, the lifting piece comprises a screw rod, a first gear motor, a nut seat and a supporting seat, the screw rod is rotatably arranged in the base, the first gear motor is arranged at the upper end of the screw rod, the first gear motor is fixedly connected with the base column, the nut seat is arranged on the outer side of the screw rod in a threaded manner, and the supporting seat is welded on the other side of the nut seat.

Preferably, the rotating piece comprises a first stepping motor, a box body and a sliding seat, the first stepping motor is fixedly arranged at the upper end of the supporting seat, one end of the first stepping motor is connected with the box body through a connecting shaft, grooves are formed in two ends of one side of the box body, sliding grooves are formed in one side of the grooves, and the sliding seat is welded on two sides of the inner wall of the box body.

Preferably, the main clamping piece comprises a shaft rod, a gear, a second gear motor, racks, sliding rails, supporting rods, a fixing frame, holes and sliding blocks, wherein the shaft rod is rotatably installed on the inner wall of one side of the box body, the gear is fixedly installed on the outer side of the shaft rod, the second gear motor is fixedly installed at the other end of the shaft rod, the racks are meshed on two sides of the gear, the sliding rails are welded on the other side of the racks, sliding connection is arranged between the sliding rails and the sliding blocks, the supporting rods are fixedly connected with the outer sides of the racks through connecting rods, the fixing frames are welded on one sides of the supporting rods, the holes are formed in one side of the tail ends of the supporting rods, the sliding blocks are welded on the other ends of the supporting rods, and sliding connection is arranged between the sliding blocks and the sliding grooves.

Preferably, the autorotation piece comprises a second stepping motor, a rotating shaft and a clamping plate, the second stepping motor is fixedly arranged on the inner side of the fixing frame, one end of the second stepping motor is connected with the rotating shaft, the rotating shaft penetrates through the hole, and the clamping plate is fixedly arranged at the other end of the rotating shaft.

Preferably, the elastic piece comprises a spring and a main clamping seat, the spring is welded on the other side of the clamping plate, the main clamping seat is welded on the other end of the spring, a mounting hole is formed in one side of the main clamping seat, a placing groove is formed in the other side of the main clamping seat, and the placing groove penetrates through the mounting hole.

Preferably, the internally mounted of mounting hole has auxiliary clamping piece, auxiliary clamping piece includes electric putter, telescopic link and auxiliary holder, the inside fixed mounting of mounting hole has electric putter, the telescopic link is installed to electric putter's one end, the other end fixed mounting of telescopic link has auxiliary holder, just auxiliary holder installs the inside at the standing groove, the slot has been seted up to one side of auxiliary holder.

Compared with the prior art, the utility model has the beneficial effects that:

1. The mobile phone glass cover plate flat grinding polishing clamp can firstly adjust the height of a box body according to the actual operation condition when the mobile phone glass cover plate is subjected to flat grinding polishing through the arrangement of the clamping mechanism, a control box controls a gear motor to start to operate, the gear motor drives a screw rod to rotate, the screw rod drives a nut seat to move while rotating, the nut seat drives the box body to move through a supporting seat, after the height adjustment is finished, the control box can directly control a gear motor II to operate when the surface is clamped, the gear motor II drives a gear to rotate through a shaft rod, the gear drives racks on the upper side and the lower side to move inwards while rotating, the rack moves in a sliding seat, the sliding seat plays a role in limiting the position of the rack, the rack drives a supporting rod to move through a connecting rod, and the supporting rod moves while moving, the sliding block at the other end slides in the sliding groove, the sliding groove plays an auxiliary supporting and limiting role on the sliding block, the supporting rod drives the autorotation piece to move inwards, then the mobile phone glass cover plate is placed on the inner side of the main clamping seats at the two sides, the rack is continuously controlled to move, after the mobile phone glass cover plate is firmly clamped by the main clamping seats at the two sides, the operation of the gear motor II can be controlled by the control box, in the clamping process, the spring can generate corresponding elastic deformation according to the clamping force, on one hand, the spring can generate reverse elastic acting force when being compressed, the mobile phone glass cover plate can firmly clamp, on the other hand, in the clamping process, the spring can slow down the clamping impact force, the mobile phone glass cover plate is prevented from being damaged due to excessive clamping, in the flat grinding polishing process, the clamping direction can be changed through the rotating piece, the operation of the stepping motor I is controlled by the control box, the first stepper motor drives the box body to rotate through the connecting shaft so as to finish the clamping direction, when the mobile phone glass cover plate needs to be treated all around, the second stepper motor is controlled by the control box to operate, the second stepper motor drives the clamping plate to rotate through the rotating shaft, the clamping plate drives the main clamping seat and the auxiliary clamping seat to rotate, so that the mobile phone glass cover plate is treated all around, the mobile phone glass cover plate with different thicknesses can be clamped, the clamping mode can be selected according to polishing requirements, when the edge treatment is needed, the surface clamping mode can be adopted, and when the surface treatment is needed, the edge clamping mode can be adopted, so that the application range is wider.

2. Through the setting of auxiliary clamping piece, when the edge centre gripping, accessible control box control electric putter operates, and electric putter control telescopic link stretches out, and the telescopic link drives auxiliary holder and breaks away from the standing groove, then control gear motor two and operate, and the auxiliary holder of control both sides moves to the inboard, then inserts cell-phone glass apron in the slot, and the slot is the arc setting, can carry out the degree of depth of self-adjusting insertion slot according to cell-phone glass apron's thickness.

Drawings

FIG. 1 is a schematic diagram of the overall appearance structure of a flat grinding and polishing clamp for a mobile phone glass cover plate;

FIG. 2 is a schematic diagram of the overall top view structure of the flat grinding and polishing clamp for the mobile phone glass cover plate;

FIG. 3 is a schematic cross-sectional structure diagram of a flat grinding and polishing clamp for a mobile phone glass cover plate;

FIG. 4 is a schematic view of a main clamping member according to the present utility model;

FIG. 5 is a schematic view of the co-operation of the rotating member, the elastic member and the auxiliary clamping member according to the present utility model;

Fig. 6 is a schematic structural diagram of the main clamping seat and the auxiliary clamping member matched with each other.

Reference numerals in the drawings: 1. a base; 2. a control box; 3. a base column; 4. a clamping mechanism; 41. a lifting member; 411. a screw rod; 412. a first gear motor; 413. a nut seat; 414. a support base; 42. a rotating member; 421. a first stepping motor; 422. a case; 4221. a groove; 4222. a chute; 423. a slide; 43. a main clamping member; 431. a shaft lever; 432. a gear; 433. a second gear motor; 434. a rack; 435. a slide rail; 436. a support rod; 437. a fixing frame; 438. a hole; 439. a slide block; 44. a rotating member; 441. a step motor II; 442. a rotation shaft; 443. a clamping plate; 45. an elastic member; 451. a spring; 452. a main clamping seat; 4521. a mounting hole; 4522. a placement groove; 5. an auxiliary clamping member; 51. an electric push rod; 52. a telescopic rod; 53. an auxiliary clamping seat; 531. a slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-6, the present utility model provides an embodiment: the flat grinding and polishing clamp for the mobile phone glass cover plate comprises a base 1 and a clamping mechanism 4, wherein a control box 2 is arranged on one side of the base 1, a base column 3 is welded at the upper end of the base 1, and the clamping mechanism 4 is arranged on one side of the base column 3;

The clamping mechanism 4 comprises a lifting member 41, a rotating member 42, a main clamping member 43, a rotating member 44 and an elastic member 45, wherein the lifting member 41 is arranged in the base column 3, the rotating member 42 is arranged on one side of the lifting member 41, the main clamping member 43 is arranged on the other side of the rotating member 42, the rotating member 44 is arranged on the other end of the main clamping member 43, and the elastic member 45 is arranged on one side of the rotating member 44.

Further, the lifting piece 41 comprises a screw rod 411, a first gear motor 412, a nut seat 413 and a supporting seat 414, the screw rod 411 is installed in the base column 3 in a rotating mode, the first gear motor 412 is installed at the upper end of the screw rod 411, the first gear motor 412 is fixedly connected with the base column 3, the nut seat 413 is installed on the outer side of the screw rod 411 in a threaded mode, the supporting seat 414 is welded on the other side of the nut seat 413, when the flat grinding polishing is conducted on the mobile phone glass cover plate, the height of the box 422 can be adjusted firstly according to actual operation conditions, the first gear motor 412 is controlled to start to operate through the control box 2, the first gear motor 412 drives the screw rod 411 to rotate, the nut seat 413 is driven to move while the screw rod 411 rotates, and the box 422 is driven to move through the supporting seat 414.

Further, the rotating member 42 includes a first stepper motor 421, a box 422 and a sliding seat 423, the first stepper motor 421 is fixedly mounted at the upper end of the supporting seat 414, one end of the first stepper motor 421 is connected with the box 422 through a connecting shaft, two ends of one side of the box 422 are provided with grooves 4221, one side of each groove 4221 is provided with a sliding groove 4222, two sides of the inner wall of the box 422 are welded with the sliding seat 423, in the flat grinding polishing process, the clamping direction can be changed through the rotating member 42, the first stepper motor 421 is controlled to operate through the control box 2, and the first stepper motor 421 drives the box 422 to rotate through the connecting shaft, so that the clamping direction is completed.

Further, the main clamping member 43 comprises a shaft 431, a gear 432, a second gear motor 433, a rack 434, a slide rail 435, a support rod 436, a fixing frame 437, a hole 438 and a slide block 439, wherein the shaft 431 is rotatably installed on the inner wall of one side of the box 422, the gear 432 is fixedly installed on the outer side of the shaft 431, the second gear motor 433 is fixedly installed at the other end of the shaft 431, the rack 434 is engaged with the two sides of the gear 432, the slide rail 435 is welded on the other side of the rack 434, the slide rail 435 is in sliding connection with the slide seat 423, the support rod 436 is fixedly connected with the outer side of the rack 434 through a connecting rod, the fixing frame 437 is welded on one side of the support rod 436, the hole 438 is formed on one side of the tail end of the support rod 436, the slide block 439 is welded on the other end of the support rod 436, the slide block 439 is in sliding connection with the slide block 4222, after the height adjustment is finished, the clamping mode is selected according to polishing requirements, the method of surface clamping can be adopted, when surface treatment is needed, the method of edge clamping can be adopted, during surface clamping, the control box 2 can be used for directly controlling the second gear motor 433 to operate, the second gear motor 433 drives the gear 432 to rotate through the shaft rod 431, the gear 432 drives the racks 434 on the upper side and the lower side to move inwards simultaneously when rotating, the racks 434 move in the sliding seat 423, the sliding seat 423 plays a role in limiting the position of the racks 434, the racks 434 drive the supporting rods 436 to move through the connecting rods, the sliding blocks 439 at the other end slide in the sliding grooves 4222 when the supporting rods 436 move, the sliding grooves 4222 play an auxiliary supporting and limiting role on the sliding blocks 439, the supporting rods 436 drive the autorotation pieces 44 to move inwards, then the glass cover plate of the mobile phone is placed on the inner side of the main clamping seat 452 on the two sides, and the racks 434 are continuously controlled to move, after the main clamping seats 452 on the two sides firmly clamp the mobile phone glass cover plate, the control box 2 can control the second gear motor 433 to stop operating.

Further, the rotation member 44 includes a second stepper motor 441, a rotation shaft 442 and a clamping plate 443, the second stepper motor 441 is fixedly mounted on the inner side of the fixing frame 437, one end of the second stepper motor 441 is connected with the rotation shaft 442, the rotation shaft 442 penetrates through the hole 438, the clamping plate 443 is fixedly mounted at the other end of the rotation shaft 442, when the mobile phone glass cover plate needs to be processed all around, the second stepper motor 441 is controlled to operate by the control box 2, the second stepper motor 441 drives the clamping plate 443 to rotate through the rotation shaft 442, and the clamping plate 443 drives the main clamping seat 452 and the auxiliary clamping seat 53 to rotate, so that the processing all around the mobile phone glass cover plate is completed.

Further, the elastic component 45 includes spring 451 and main holder 452, the opposite side welding of grip block 443 has spring 451, the other end welding of spring 451 has main holder 452, mounting hole 4521 has been seted up to one side of main holder 452, standing groove 4522 has been seted up to the opposite side of main holder 452, and standing groove 4522 runs through with mounting hole 4521, in the centre gripping in-process, corresponding elastic deformation can take place for spring 451 according to the dynamics of centre gripping, on the one hand, spring 451 can produce reverse elastic force when compressing, can firmly grasp cell-phone glass apron, on the other hand, in the centre gripping in-process, spring 451 can slow down the impact force of centre gripping, avoid the centre gripping excessively and damage cell-phone glass apron, when face presss from both sides, auxiliary holder 53 is in inside standing groove 4522, auxiliary holder 53 is in same face with main holder 452 this moment, can not influence the centre gripping effect of main holder 452.

Example two

Referring to fig. 1-2 and fig. 5-6, in a first comparative example, as another embodiment of the present utility model, an auxiliary clamping member 5 is installed in an installation hole 4521, the auxiliary clamping member 5 includes an electric push rod 51, a telescopic rod 52 and an auxiliary clamping seat 53, the electric push rod 51 is fixedly installed in the installation hole 4521, the telescopic rod 52 is installed at one end of the electric push rod 51, the auxiliary clamping seat 53 is fixedly installed at the other end of the telescopic rod 52, the auxiliary clamping seat 53 is installed in a placing groove 4522, one side of the auxiliary clamping seat 53 is provided with a slot 531, during edge clamping, the electric push rod 51 can be controlled by a control box 2 to operate, the telescopic rod 52 is controlled to extend out, the telescopic rod 52 drives the auxiliary clamping seat 53 to be separated from the placing groove 4522, then a speed reduction motor 433 is controlled to operate, the auxiliary clamping seats 53 at two sides are controlled to move inwards, then a mobile phone glass cover plate is inserted into the slot 531, the slot 531 is in an arc shape, and the depth of the inserted slot 531 can be automatically adjusted according to the thickness of the mobile phone glass cover plate.

Working principle: firstly, a flat grinding and polishing clamp for a mobile phone glass cover plate is moved to a working position, firstly, when the flat grinding and polishing clamp is used for the mobile phone glass cover plate, the height of a box 422 can be adjusted according to the actual operation condition, a first speed reducing motor 412 is controlled by a control box 2 to start to operate, the first speed reducing motor 412 drives a screw rod 411 to rotate, the screw rod 411 drives a nut seat 413 to move while rotating, the nut seat 413 drives the box 422 to move through a supporting seat 414, secondly, after the height adjustment is finished, a clamping mode is selected according to the polishing requirement, when edge processing is needed, a surface clamping mode can be adopted, when surface processing is needed, a second speed reducing motor 433 can be directly controlled by the control box 2 to operate, the second speed reducing motor 433 drives a gear 432 to rotate through a shaft rod 431, the gear 432 rotates and drives the racks 434 on the upper and lower sides to move inwards simultaneously, the racks 434 move in the sliding seat 423, the sliding seat 423 plays a role in limiting the position of the racks 434, the racks 434 drive the supporting rod 436 to move through the connecting rod, the sliding block 439 at the other end slides in the sliding groove 4222 when the supporting rod 436 moves, the sliding groove 4222 plays an auxiliary supporting and limiting role on the sliding block 439, the supporting rod 436 drives the autorotation piece 44 to move inwards, the third step is to place the mobile phone glass cover plate on the inner side of the main clamping seat 452 on the two sides, the racks 434 are continuously controlled to move, after the mobile phone glass cover plate is firmly clamped by the main clamping seat 452 on the two sides, the operation of the speed reducing motor 433 can be controlled through the control box 2, the spring 451 can generate corresponding elastic deformation according to the clamping force in the clamping process, the fourth step, when the edge is clamped, the electric push rod 51 can be controlled to operate through the control box 2, the electric push rod 51 controls the telescopic rod 52 to extend, the telescopic rod 52 drives the auxiliary clamping seat 53 to be separated from the placing groove 4522, then the speed reducing motor 433 is controlled to operate, the auxiliary clamping seats 53 on two sides are controlled to move inwards, then the mobile phone glass cover plate is inserted into the slot 531, in the fifth step, in the flat grinding polishing process, the clamping direction can be changed through the rotating piece 42, the first stepping motor 421 is controlled to operate through the control box 2, the first stepping motor 421 drives the box 422 to rotate through the connecting shaft, so that the clamping direction is completed, in the sixth step, when the mobile phone glass cover plate needs to be processed all around, the second stepping motor 441 is controlled to operate through the control box 2, the second stepping motor 441 drives the clamping plate 443 to rotate through the rotating shaft 442, and the main clamping seat 452 and the auxiliary clamping seat 53 are driven to rotate, so that the peripheral treatment of the mobile phone glass cover plate is completed, and the use process of the flat grinding polishing clamp for the mobile phone glass cover plate is completed.

Claims (7)

1. The utility model provides a cell-phone glass apron flat grinding polishing clamp, includes base (1) and fixture (4), its characterized in that: a control box (2) is arranged on one side of the base (1), a base column (3) is welded at the upper end of the base (1), and a clamping mechanism (4) is arranged on one side of the base column (3);

The clamping mechanism (4) comprises a lifting piece (41), a rotating piece (42), a main clamping piece (43), a rotating piece (44) and an elastic piece (45), wherein the lifting piece (41) is installed in the base column (3), the rotating piece (42) is installed on one side of the lifting piece (41), the main clamping piece (43) is installed on the other side of the rotating piece (42), the rotating piece (44) is installed on the other end of the main clamping piece (43), and the elastic piece (45) is installed on one side of the rotating piece (44).

2. The flat grinding and polishing clamp for the mobile phone glass cover plate according to claim 1, wherein the lifting piece (41) comprises a screw rod (411), a first gear motor (412), a nut seat (413) and a supporting seat (414), the screw rod (411) is installed in the base column (3) in a rotating mode, the first gear motor (412) is installed at the upper end of the screw rod (411), the first gear motor (412) is fixedly connected with the base column (3), the nut seat (413) is installed on the outer side threads of the screw rod (411), and the supporting seat (414) is welded on the other side of the nut seat (413).

3. The flat grinding and polishing clamp for the mobile phone glass cover plate according to claim 2, wherein the rotating piece (42) comprises a first stepping motor (421), a box body (422) and a sliding seat (423), the first stepping motor (421) is fixedly arranged at the upper end of the supporting seat (414), one end of the first stepping motor (421) is connected with the box body (422) through a connecting shaft, grooves (4221) are formed in two ends of one side of the box body (422), sliding grooves (4222) are formed in one side of the grooves (4221), and the sliding seat (423) is welded on two sides of the inner wall of the box body (422).

4. The flat grinding and polishing clamp for the mobile phone glass cover plate according to claim 3, wherein the main clamping piece (43) comprises a shaft rod (431), a gear (432), a second gear motor (433), a rack (434), a sliding rail (435), a supporting rod (436), a fixing frame (437), a hole (438) and a sliding block (439), the shaft rod (431) is rotatably installed on the inner wall of one side of the box body (422), the gear (432) is fixedly installed on the outer side of the shaft rod (431), the second gear motor (433) is fixedly installed at the other end of the shaft rod (431), racks (434) are meshed on two sides of the gear (432), sliding rails (435) are welded on the other side of the racks (434), sliding rails (435) are connected between the sliding rails (435) and the sliding blocks (423), the supporting rod (436) is fixedly connected with the fixing frame (437) through a connecting rod, the hole (436) is formed in one side of the tail end of the supporting rod (436), the other end of the supporting rod (436) is welded with the sliding block (439), and sliding blocks (439) are connected with the sliding blocks (22).

5. The flat grinding and polishing clamp for the mobile phone glass cover plate according to claim 4, wherein the rotating member (44) comprises a second stepping motor (441), a rotating shaft (442) and a clamping plate (443), the second stepping motor (441) is fixedly arranged on the inner side of the fixing frame (437), one end of the second stepping motor (441) is connected with the rotating shaft (442), the rotating shaft (442) penetrates through the hole (438), and the clamping plate (443) is fixedly arranged at the other end of the rotating shaft (442).

6. The flat grinding and polishing clamp for the mobile phone glass cover plate according to claim 5, wherein the elastic piece (45) comprises a spring (451) and a main clamping seat (452), the spring (451) is welded on the other side of the clamping plate (443), the main clamping seat (452) is welded on the other end of the spring (451), a mounting hole (4521) is formed in one side of the main clamping seat (452), a placing groove (4522) is formed in the other side of the main clamping seat (452), and the placing groove (4522) penetrates through the mounting hole (4521).

7. The flat grinding and polishing clamp for the mobile phone glass cover plate according to claim 6, wherein an auxiliary clamping piece (5) is mounted in the mounting hole (4521), the auxiliary clamping piece (5) comprises an electric push rod (51), a telescopic rod (52) and an auxiliary clamping seat (53), the electric push rod (51) is fixedly mounted in the mounting hole (4521), the telescopic rod (52) is mounted at one end of the electric push rod (51), the auxiliary clamping seat (53) is fixedly mounted at the other end of the telescopic rod (52), the auxiliary clamping seat (53) is mounted in the placing groove (4522), and a slot (531) is formed in one side of the auxiliary clamping seat (53).