Polishing equipment for mechanical part machining

Abstract

The invention relates to the technical field of mechanical part machining, in particular to polishing equipment for mechanical part machining, which comprises a machining table, a polishing device and two air cylinders, the clamping mechanism comprises two clamping blocks connected with the two air cylinders correspondingly, the two clamping blocks are each provided with a plurality of extrusion assemblies used for fixing the mechanical parts, the two clamping blocks are each provided with an installation groove, and the two installation grooves are each internally provided with a driving assembly and a limiting assembly which are used for locking the corresponding extrusion assembly; the multiple extrusion assemblies and the driving assembly are matched with the limiting assembly, limiting of the extrusion assemblies is achieved, it is guaranteed that the extrusion assemblies stably extrude mechanical parts, the extrusion assemblies are matched with an air cylinder, then stable fixing is achieved when the different mechanical parts are polished, the practicability of the device is greatly improved, and under the cooperation of a locking assembly, the mechanical parts can be stably fixed. And the extrusion assembly can be rapidly adjusted, and time is saved.

Description

Technical Field

[0001] The invention relates to the field of mechanical parts processing, in particular to a polishing device for mechanical parts processing. Background Art

[0002] Mechanical parts are the basic units that make up mechanical equipment and mechanical systems. They can be individual components or a combination of multiple components. There are many types of mechanical parts.

[0003] Mechanical parts need to be polished using polishing equipment during the production process to remove burrs, scratches and other surface defects on the parts to make the surface smoother. When polishing, the mechanical parts need to be fixed first to avoid deviation of the mechanical parts during the polishing process, which will result in poor polishing effect.

[0004] Since there are many types of mechanical parts, different mechanical parts require different clamps when being fixed. For example, when fixing arc-shaped parts, an arc-shaped clamp is required, and when processing plate-shaped parts, a flat clamp is required. The factory produces a wide variety of mechanical parts. The cost of using multiple clamps is high, and when processing different parts, the corresponding clamps need to be replaced. In the prior art, bolts are mostly used to install the clamps and the cylinders. The bolt installation requires a wrench, which is more troublesome.

[0005] Therefore, a polishing device for machining mechanical parts is proposed Summary of the invention

[0006] In view of the fact that different mechanical parts mentioned above or in the prior art require different clamps for fixing, for example, when fixing arc-shaped parts, an arc-shaped clamp is required, and when processing plate-like parts, a flat clamp is required. There are many kinds of mechanical parts produced by factories, and the cost of using multiple clamps is high. In addition, when processing different parts, the corresponding clamps need to be replaced. In the prior art, bolts are mostly used to install the clamps and the cylinders, and the bolt installation requires a wrench, which is a rather troublesome problem. Therefore, the present invention is proposed.

[0007] Therefore, the object of the present invention is to provide a polishing device for machining mechanical parts.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: a processing table on which a polishing device and two cylinders are arranged; The clamping mechanism comprises two clamping blocks respectively connected to two cylinders, and the two clamping blocks are each provided with a plurality of extrusion components for fixing mechanical parts, and the two clamping blocks are each provided with an installation groove, and the inside of the two installation grooves are each provided with a driving component and a limiting component for locking the extrusion component, and a locking component arranged between the driving component and the limiting component.

[0009] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the extrusion assembly includes a telescopic rod and a first spring connected to two clamping blocks, the first spring is sleeved on the telescopic rod, and the ends of the telescopic rod and the first spring away from the clamping blocks are both connected to the extrusion head; The end of the extrusion head is a curved surface.

[0010] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the telescopic rod is composed of a sleeve and an extension rod, the sleeve passes through the mounting slot and is fixedly connected to the mounting slot, the extension rod is slidably connected to the sleeve, and a plurality of limit grooves are provided on the extension rod; A notch is provided at the bottom of the sleeve.

[0011] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the driving assembly includes a driving handle arranged on one side of the mounting plate, a connecting rod is connected to the driving handle, and the connecting rod extends into the mounting groove at one end away from the driving handle and is connected to a driving disk.

[0012] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the driving disk is provided with a first arc surface and a first plane surface.

[0013] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the driving disk is also provided with a second plane and a third plane.

[0014] As a preferred solution of the polishing device for machining mechanical parts of the present invention, the limiting assembly includes a protruding block arranged inside the mounting groove, the protruding block is provided with a second arc surface and a fourth plane, the protruding block is connected to a second spring and a limiting rod, and one end of the second spring away from the protruding block is connected to the inner wall of the mounting groove; The limiting groove matches the limiting rod.

[0015] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the locking assembly comprises a connecting disk fixedly sleeved on the connecting rod, a side of the connecting disk close to the driving disk is connected to an extrusion plate, a third arc surface is arranged on the extrusion plate, a third spring is connected inside the mounting groove, an end of the third spring close to the connecting disk is connected to a slider, a side of the slider away from the third spring is connected to a locking block, and two first locking grooves and two second locking grooves are arranged on the locking block; The third spring, the slider and the locking block are all slidably sleeved on the connecting rod; The groove surfaces of the two first locking grooves and the two second locking grooves are both arc surfaces, and the two first locking grooves and the two second locking grooves are distributed in a rectangular shape.

[0016] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the sliding block is rectangular.

[0017] As a preferred solution of the polishing equipment for machining mechanical parts of the present invention, the depth of the first locking groove is greater than the depth of the second locking groove.

[0018] The beneficial effects of the polishing equipment for machining mechanical parts of the present invention are as follows: through the arrangement of multiple extrusion assemblies, flexible fixation of mechanical parts is achieved, and through the cooperation of the driving assembly with the limiting assembly, the limitation of the extrusion assembly is achieved, thereby ensuring the rigid fixation of the mechanical parts by the extrusion assembly, and cooperating with the cylinder, it is possible to provide stable fixation when polishing different mechanical parts, greatly increasing the practicality of the device, and with the cooperation of the locking assembly, the locking and unlocking of the extrusion assembly by the driving assembly and the limiting assembly are simple and quick, saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 This is an overall schematic diagram of polishing equipment for machining mechanical parts.

[0021] Figure 2 Schematic diagram of the clamping mechanism structure of the polishing equipment for machining mechanical parts Figure 1 .

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the clamping mechanism of the polishing equipment used for machining mechanical parts.

[0023] Figure 4Schematic diagram of the clamping mechanism structure of the polishing equipment for machining mechanical parts Figure 2 .

[0024] Figure 5 This is a schematic diagram of the drive disc structure of a polishing device for machining mechanical parts.

[0025] Figure 6 This is a schematic diagram of the structure of the limit assembly of the polishing equipment used for machining mechanical parts.

[0026] Figure 7 This is a schematic diagram of the locking assembly structure of a polishing device for machining mechanical parts.

[0027] In the figure: 100, processing table; 101, cylinder; 200, clamping mechanism; 201, clamping block; 202, extrusion assembly; 202a, telescopic rod; 202b, first spring; 202c, extrusion head; 202a-1, limiting groove; 203, mounting slot; 204, driving assembly; 204a, driving handle; 204b, connecting rod; 204c, driving disk; 204c-1, first arc surface; 204c-2, first plane; 204c-3, second plane; 204c-4, third plane; 205, limiting assembly; 205a, protruding block; 205b, second arc surface; 205c, fourth plane; 205d, second spring; 205e, limiting rod; 206, locking assembly; 206a, connecting plate; 206b, extrusion plate; 206c, third arc surface; 206d, third spring; 206e, slider; 206f, locking block; 206g, first locking groove; 206h, second locking groove. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Example 1, reference Figure 1~Figure 2, which is the first embodiment of the present invention, and provides a polishing device for machining mechanical parts, including a machining table 100, on which a polishing device and two cylinders 101 are arranged, and the polishing device is used to polish the mechanical parts clamped by a clamping mechanism 200, and the machining table 100 is provided with a clamping mechanism 200, and the clamping mechanism 200 includes two clamping blocks 201 respectively connected to the two cylinders 101, and the two clamping blocks 201 are both provided with an extrusion assembly 202 for fixing the mechanical parts, and the two clamping blocks 201 are both provided with an installation groove 203, and the two installation grooves 203 are both provided with a The driving assembly 204 and the limiting assembly 205 that lock the extrusion assembly 202, and the locking assembly 206 arranged between the driving assembly 204 and the limiting assembly 205, can initially realize the preliminary positioning of the mechanical parts that need to be polished through the extrusion assembly 202, and through the setting of the driving assembly 204 and the limiting assembly 205, it is possible to lock multiple extrusion assemblies 202, so that the two clamping blocks 201 cooperate with multiple extrusion assemblies 202 to clamp special-shaped parts, and through the locking assembly 206, it is possible to lock the driving assembly 204, thereby realizing the stable locking of the extrusion assembly 202.

[0030] Specifically, the polishing device is a three-coordinate drive polishing machine which is mainly used for precision machining of hardware parts and can perform efficient and accurate polishing. Furthermore, the extrusion assembly 202 includes a telescopic rod 202a and a first spring 202b connected to the clamp block 201, the first spring 202b is sleeved on the telescopic rod 202a, and the ends of the telescopic rod 202a and the first spring 202b away from the clamp block 201 are connected to the extrusion head 202c, and the end of the extrusion head 202c is an arc surface, and the setting of the arc surface is more convenient for better contact with the surface of the mechanical parts; In this embodiment, the two cylinders 101 may not be provided; During use, when the mechanical parts to be polished are thin-walled or easily deformed parts, such as metal shells of mobile phones and notebooks, the mechanical parts to be polished are placed between multiple extrusion components 202, and the surface of the mechanical parts contacts the curved surface of the extrusion head 202c, thereby driving the multiple extrusion heads 202c to approach the two clamping blocks 201 respectively, and the multiple extrusion heads 202c respectively drive the telescopic rods 202a connected thereto to contract, and the first springs 202b are compressed. The elastic force of the multiple first springs 202b is used to fix the mechanical parts during polishing, and the flexible extrusion is used to avoid excessive extrusion of the mechanical parts to cause deformation and damage of the parts.

[0031] Example 2, reference Figure 2~Figure 6, which is the second embodiment of the present invention. Different from the previous embodiment, the telescopic rod 202a in this embodiment is composed of a sleeve and an extension rod, the sleeve passes through the installation groove 203 and is fixedly connected to the installation groove 203, the extension rod is slidably connected to the sleeve, and a plurality of limit grooves 202a-1 are provided on the extension rod.

[0032] Among them, one end of the first spring 202b is in contact with the clamping block 201, and the other end of the first spring 202b is in contact with the extrusion head 202c. Due to the movement vibration during the polishing process, the vibration is transmitted to the contact point between the mechanical parts and the extrusion head 202c through the mechanical parts. In the long run, the extrusion head 202c will be worn more and more, so it needs to be replaced. If the first spring 202b is not connected, when it needs to be replaced, the extrusion head 202c can be directly driven by the extension rod of the telescopic rod 202a to be pulled out from the inside of the sleeve, and then the first spring 202b can be sleeved on the extension rod of the telescopic rod 202a and inserted into the sleeve. It is simple and quick.

[0033] Furthermore, the driving assembly 204 includes a driving handle 204a disposed on one side of the clamping block 201, the driving handle 204a is provided with anti-slip grooves, the driving handle 204a is connected to a connecting rod 204b, and one end of the connecting rod 204b away from the driving handle 204a extends to the inside of the mounting groove 203 and is connected to a driving disk 204c.

[0034] Furthermore, a first arc surface 204c-1 and a first plane 204c-2 are provided on the driving disk 204c, and a second plane 204c-3 and a third plane 204c-4 are also provided on the driving disk 204c. The first arc surface 204c-1 is an elliptical arc surface, which is used to lift the protruding block 205a. The first plane 204c-2 is a supporting surface, which is used to stably support the protruding block 205a. The second plane 204c-3 and the third plane 204c-4 are respectively used to limit the clockwise and counterclockwise rotation of the driving disk 204c.

[0035] Furthermore, the limiting assembly 205 includes a protruding block 205a arranged inside the mounting groove 203, and a second arc surface 205b and a fourth plane 205c are provided on the protruding block 205a. A second spring 205d and a limiting rod 205e are connected to the protruding block 205a, and one end of the second spring 205d away from the protruding block 205a is connected to the inner wall of the mounting groove 203, and the limiting groove 202a-1 matches the limiting rod 205e.

[0036] Specifically, a notch is provided at the bottom of the sleeve, and the notch matches the limiting rod 205e. In the initial state, one end of the limiting rod 205e slides through the notch and is flush with the notch, which will not affect the movement of the extension rod of the telescopic rod 202a into the sleeve. The rest of the structure is the same as that of Example 1.

[0037] In this embodiment, two cylinders 101 need to be provided on the processing table 100, and the output ends of the two cylinders 101 are respectively connected to the two clamping blocks 201; When the mechanical parts that need to be polished are regular parts with higher hardness, such as bearings, gears, etc.; The mechanical parts to be processed are placed on the top of the processing table 100, and the driving handle 204a is rotated 90 degrees. The driving handle 204a drives the connecting rod 204b to rotate, and the connecting rod 204b drives the driving disk 204c to rotate. The first curved surface 204c-1 on the driving disk 204c contacts the second curved surface 205b on the protruding block 205a, driving the protruding block 205a to rise, and the protruding block 205a drives the second spring 205d to be compressed. At the same time, the protruding block 205a drives the limiting rod 205e to first pass through the installation groove 203 and then enter the limiting groove 202a-1. When the first plane 204c-2 of the driving disk 204c contacts the end of the protruding block 205a, the driving disk 204c passes through the protruding block. 205a drives the limiting rod 205e to move to a suitable position inside the limiting groove 202a-1, and locks the extension rod of the telescopic rod 202a, that is, the telescopic rod 202a cannot be retracted, and at this time the second plane 204c-3 contacts the fourth plane 205c on the protruding block 205a, so that the driving disk 204c can no longer rotate, and the telescopic rod 202a is locked. The multiple telescopic rods 202a are locked in sequence. After completion, by turning on the two cylinders 101, the two cylinders 101 drive the multiple telescopic rods 202a to approach each other through the two clamping blocks 201, and the multiple telescopic rods 202a drive the multiple extrusion heads 202c to approach the direction of the mechanical parts to be polished, thereby realizing the rigid fixation of the mechanical parts; On the contrary, the driving handle 204a is reversed by ninety degrees. When the driving handle 204a drives the driving disk 204c to reverse through the connecting rod 204b, when the first arc surface 204c-1 on the driving disk 204c contacts the protruding block 205a, the protruding block 205a is reset under the elastic force of the second spring 205d, and the protruding block 205a drives the limiting rod 205e to disengage from the limiting groove 202a-1, thereby releasing the lock on the telescopic rod 202a. When the third plane 204c-4 contacts the side of the protruding block 205a, the limiting rod 205e is completely disengaged from the limiting groove 202a-1, thereby releasing the lock on the extension rod of the telescopic rod 202a. At this time, flexible fixation can be achieved.

[0038] When the mechanical parts to be polished are irregular parts with higher hardness, such as half gears or irregular inserts for molds; When in use, firstly, the two cylinders 101 drive the multiple extrusion assemblies 202 to move to the appropriate position through the two clamping blocks 201, and then the irregular mechanical parts to be polished are squeezed by the multiple extrusion heads 202c, so that the multiple extrusion heads 202c respectively drive the extension rods of the multiple telescopic rods 202a to move into the sleeve. At the same time, when the mechanical parts are in contact with the top of the processing table 100, at this time, the extension rods of the multiple telescopic rods 202a move to the appropriate position, and the driving handle 204a is rotated 90 degrees, and the driving handle 204a is driven by the driving assembly 204 and the limit assembly 20 5 cooperates to drive the limiting rod 205e to move to the appropriate position inside the limiting groove 202a-1, and locks the extension rod of the telescopic rod 202a, that is, the telescopic rod 202a cannot be retracted. At this time, the multiple extrusion heads 202c correspond to the corresponding positions of the irregular mechanical parts respectively, and then by opening the two cylinders 101, the two cylinders 101 drive the multiple telescopic rods 202a to approach each other through the two clamping blocks 201, and the multiple telescopic rods 202a drive the multiple extrusion heads 202c to approach the irregular mechanical parts that need to be polished, thereby achieving stable fixation of the irregular mechanical parts.

[0039] In summary, by rotating the driving handle 204a forward and reversely by 90 degrees, the driving handle 204a can drive the limiting rod 205e to insert into the limiting groove 202a-1 and disengage from the limiting groove 202a-1 through the connecting rod 204b and the driving disk 204c, thereby realizing the locking and unlocking of the extension rod of the telescopic rod 202a, which is simple and fast. When multiple telescopic rods 202a are locked, by turning on the two cylinders 101, the two cylinders 101 drive the multiple telescopic rods 202a to approach each other through the two clamping blocks 201, thereby realizing the rigid fixation of the mechanical parts, and by adjusting the extension rod positions of the multiple telescopic rods 202a, the device can be applied to the fixation of some irregular mechanical parts. Unlike the prior art, different parts in the prior art need to be replaced with different fixtures. Therefore, the factory must prepare a variety of fixtures, which greatly increases the cost. In addition, replacing the fixture requires the use of tools such as wrenches to remove the bolts, which is more troublesome. However, this setting can adjust the positions of multiple extrusion heads 202c according to the mechanical parts that need to be fixed, and then drive the limit assembly 205 to quickly lock it through the drive assembly 204, so that the device can be suitable for processing mechanical parts of various sizes, which greatly increases the practicality of the device and reduces the cost. It can also cooperate with the first spring 202b to achieve flexible fixation, so that the device can be used not only for mechanical parts with higher hardness, but also for polishing thin-walled or easily deformed mechanical parts.

[0040] Example 3, reference Figure 3~Figure 7, which is the third embodiment of the present invention. Different from the previous embodiment, the locking assembly 206 in this embodiment includes a connecting disk 206a fixedly sleeved on the connecting rod 204b, and two extrusion plates 206b are connected to the side of the connecting disk 206a close to the driving disk 204c. The ends of the two extrusion plates 206b away from the connecting disk 206a are both provided with a third arc surface 206c, and the inside of the mounting groove 203 is connected with a third spring 206d, and the end of the third spring 206d close to the connecting disk 206a is connected with a sliding Block 206e, the slider 206e is connected to a locking block 206f on the side away from the third spring 206d, and two first locking grooves 206g and two second locking grooves 206h are provided on the locking block 206f. The third spring 206d, the slider 206e and the locking block 206f are all slidably mounted on the connecting rod 204b, and the groove surfaces of the two first locking grooves 206g and the two second locking grooves 206h are both arc surfaces, and the two first locking grooves 206g and the two second locking grooves 206h are distributed in a rectangular shape.

[0041] Among them, the side where the driving handle 204a and the connecting disk 206a are close to each other are respectively fitted with the outer surface of the clamping block 201 and the inner wall of the installation groove 203, ensuring the position of the driving component 204 and avoiding the sliding of the connecting rod 204b, the connecting disk 206a and the driving disk 204c. At the same time, it also ensures the connection between the extrusion plate 206b and the locking block 206f.

[0042] Furthermore, the slider 206e is rectangular, and the mounting groove 203 corresponding to the slider 206e is also rectangular. The rectangular setting makes it possible for when the connecting disk 206a drives the extrusion plate 206b to rotate, and the third arc surface 206c on the extrusion plate 206b contacts the inner wall of the first locking groove 206g or the second locking groove 206h, it will not drive the locking block 206f and the slider 206e to rotate, thereby ensuring that the extrusion plate 206b accurately enters the second locking groove 206h from the first locking groove 206g or enters the first locking groove 206g from the second locking groove 206h, thereby locking the drive assembly 204 and ensuring the stability of the third spring 206d.

[0043] Furthermore, the depth of the first locking groove 206g is greater than the depth of the second locking groove 206h, and the driving disk 204c is locked by the height difference between the depths of the first locking groove 206g and the second locking groove 206h.

[0044] The rest of the structure is the same as that of Example 2.

[0045] In the initial state, the two extrusion plates 206b are respectively located inside the two first locking grooves 206g, and the template is not installed at this time; When in use, when the driving handle 204a drives the connecting rod 204b to rotate, the connecting rod 204b drives the connecting disk 206a to rotate, and the connecting disk 206a drives the extrusion plate 206b to rotate, so that the third arc surface 206c on the extrusion plate 206b contacts the groove surface of the first locking groove 206g, so that the locking block 206f moves toward the direction of the driving disk 204c, and the locking block 206f drives the third spring 206d to be compressed through the slider 206e. When the slider 206e is inserted into the second locking groove 206h, the third spring 206d is still in a compressed state, and under the elastic force of the third spring 206d, the slider 206e is pressed and contacted with the extrusion plate 206b through the second locking groove 206h on the locking block 206f, thereby locking the extrusion plate 206b, and then locking the connecting plate 206a connected to the extrusion plate 206b, and locking the driving plate 204c connected to the connecting plate 206a through the connecting rod 204b; When the driving handle 204a is reversed, the driving handle 204a drives the extrusion plate 206b to reverse through the connecting rod 204b and the connecting plate 206a, so that the extrusion plate 206b rotates from the inside of the second locking groove 206h to the inside of the first locking groove 206g. At this time, the third spring 206d is still in a natural state, and the slider 206e is only in contact with the extrusion plate 206b through the second locking groove 206h on the locking block 206f.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A polishing device for machining mechanical parts, characterized in that: Including, including, A processing table (100) on which a polishing device and two cylinders (101) are arranged; The clamping mechanism (200) comprises two clamping blocks (201) respectively connected to two cylinders (101), the two clamping blocks (201) being provided with a plurality of extrusion assemblies (202) for fixing mechanical parts, the two clamping blocks (201) being provided with mounting grooves (203), the two mounting grooves (203) being provided with driving assemblies (204) and limiting assemblies (205) for locking the extrusion assemblies (202), and a locking assembly (206) being provided between the driving assemblies (204) and the limiting assemblies (205).

2. The polishing equipment for machining mechanical parts according to claim 1, characterized in that: The extrusion assembly (202) comprises a telescopic rod (202a) and a first spring (202b) connected to the two clamping blocks (201); the first spring (202b) is sleeved on the telescopic rod (202a); and ends of the telescopic rod (202a) and the first spring (202b) away from the clamping blocks (201) are both connected to an extrusion head (202c); The end of the extrusion head (202c) is a curved surface.

3. The polishing equipment for machining mechanical parts according to claim 2, characterized in that: The telescopic rod (202a) is composed of a sleeve and an extension rod, the sleeve passes through the installation groove (203) and is fixedly connected to the installation groove (203), the extension rod is slidably connected to the sleeve, and a plurality of limit grooves (202a-1) are provided on the extension rod; A notch is provided at the bottom of the sleeve.

4. The polishing equipment for machining mechanical parts according to claim 3, characterized in that: The driving assembly (204) comprises a driving handle (204a) disposed on one side of the clamping block (201), the driving handle (204a) being connected to a connecting rod (204b), and one end of the connecting rod (204b) away from the driving handle (204a) extending into the interior of the mounting groove (203) and being connected to a driving disc (204c).

5. The polishing equipment for machining mechanical parts according to claim 4, characterized in that: The driving disk (204c) is provided with a first arc surface (204c-1) and a first plane (204c-2).

6. The polishing equipment for machining mechanical parts according to claim 5, characterized in that: The driving disk (204c) is also provided with a second plane (204c-3) and a third plane (204c-4).

7. The polishing equipment for machining mechanical parts according to claim 6, characterized in that: The limiting assembly (205) comprises a protruding block (205a) arranged inside the installation groove (203), the protruding block (205a) being provided with a second arc surface (205b) and a fourth plane (205c), the protruding block (205a) being connected to a second spring (205d) and a limiting rod (205e), and the end of the second spring (205d) away from the protruding block (205a) being connected to the inner wall of the installation groove (203); The limiting groove (202a-1) matches the limiting rod (205e).

8. The polishing equipment for machining mechanical parts according to claim 7, characterized in that: The locking assembly (206) comprises a connecting disk (206a) fixedly sleeved on the connecting rod (204b); a side of the connecting disk (206a) close to the driving disk (204c) is connected to an extrusion plate (206b); a third cambered surface (206c) is provided on the extrusion plate (206b); a third spring (206d) is connected inside the mounting groove (203); an end of the third spring (206d) close to the connecting disk (206a) is connected to a slider (206e); a side of the slider (206e) away from the third spring (206d) is connected to a locking block (206f); and the locking block (206f) is provided with two first locking grooves (206g) and two second locking grooves (206h); The third spring (206d), the sliding block (206e) and the locking block (206f) are all slidably sleeved on the connecting rod (204b); The groove surfaces of the two first locking grooves (206g) and the two second locking grooves (206h) are both arc surfaces, and the two first locking grooves (206g) and the two second locking grooves (206h) are distributed in a rectangular shape.

9. The polishing device for machining mechanical parts according to claim 8, characterized in that: The sliding block (206e) is rectangular.

10. The polishing equipment for machining mechanical parts according to claim 8 or 9, characterized in that: The depth of the first locking groove (206g) is greater than the depth of the second locking groove (206h).

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