Belleville spring machining and grinding device

Abstract

The invention relates to the field of spring machining, in particular to a belleville spring machining and grinding device which comprises a workbench and a grinding mechanism used for grinding the inner hole wall of a belleville spring. A clamp used for fixing the belleville spring is arranged on the workbench. The clamp comprises a positioning assembly capable of quickly positioning the belleville spring to the center of the workbench and an abutting assembly capable of abutting the belleville spring against the positioning assembly. By arranging the positioning assembly, a worker can conveniently and rapidly place the belleville spring at the center of the workbench in the machining production process, then the belleville spring can be fixed through the abutting assembly, and the machining precision of the belleville spring is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of spring processing, and in particular to a disc spring processing and grinding device. Background Art

[0002] Disc springs are conical discs. As sealing aids, they can be used individually or in series or in parallel. They bear static or dynamic loads acting in the axial direction at the upper inner edge and the lower outer edge. They are compressed and deformed until they are flattened. They store energy as live loads, which are automatically converted into additional compression loads required for sealing when necessary, to reduce the continuous tightening requirements of gaskets and packings during use, and reduce unnecessary downtime for maintenance and leakage losses.

[0003] Since disc springs are multiple sets installed on rods or bolts for use, the roughness of the inner hole wall of the disc spring needs to be smooth. Therefore, in the production process of disc springs, the inner hole of the finished disc spring needs to be polished. The inner hole of the disc spring is mostly polished manually with sandpaper. A few factories use special polishing equipment to polish the inner hole wall of the disc spring. The existing polishing device is relatively slow in the process of positioning and fixing the disc spring, which still affects the polishing efficiency of the disc spring. Summary of the invention

[0004] In view of the problems existing in the existing technology, a disc spring processing and grinding device is provided. The positioning component can facilitate the staff to quickly place the disc spring at the center of the workbench during the processing and production process, and then the disc spring can be fixed by the pressing component, thereby ensuring the processing accuracy of the disc spring.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A disc spring processing and grinding device comprises a workbench and a grinding mechanism for grinding the inner hole wall of the disc spring;

[0007] A fixture for fixing the disc spring is provided on the workbench;

[0008] The clamp comprises a positioning component which can quickly position the disc spring at the center of the workbench and a pressing component which can press the disc spring against the positioning component.

[0009] Preferably, the positioning assembly includes two positioning blocks, and the two positioning blocks are both horizontally arranged on the workbench;

[0010] The workbench is provided with two horizontally extending strip grooves, the inner angle between the two strip grooves is 120 degrees, and the ends of the two strip grooves close to each other both point to the center of the workbench;

[0011] The two positioning blocks are respectively slidably arranged in the two strip-shaped grooves, and each strip-shaped groove is also provided with a position adjustment component for fixing the position of the corresponding positioning block.

[0012] Preferably, both sets of position adjustment components include a locking bolt and a connecting block;

[0013] The two connecting blocks are respectively slidably arranged in the two strip-shaped grooves, and the two connecting blocks are respectively fixedly connected to the two positioning blocks;

[0014] A strip hole is provided at the upper end of each connection block, a threaded hole is provided at the bottom of each strip groove, and two locking bolts pass through the two strip holes and are threadedly connected with the corresponding threaded holes respectively.

[0015] Preferably, the pressing assembly comprises a pressing block, a connecting plate, a round rod, a first rectangular seat and a linear drive module;

[0016] The pressing block is arranged on the workbench, the first rectangular seat is installed on the workbench, a first guide hole is opened on the first rectangular seat, and the round rod is slidably arranged in the first guide hole;

[0017] The round rod is arranged horizontally above the workbench, and the angle between the length direction of the round rod and the length direction of the two strip grooves is 120 degrees;

[0018] One end of the round rod close to the two strip grooves is fixedly connected to the pressing block through a connecting plate;

[0019] The linear drive module is arranged on a side of the round rod away from the two strip grooves and is used for driving the round rod to slide along the first guide hole.

[0020] Preferably, the linear drive module comprises a second rectangular seat and a linear drive;

[0021] The second rectangular seat is fixedly mounted on the workbench, the linear drive is mounted on the second rectangular seat, the output shaft of the linear drive is coaxially arranged with the round rod, and the output shaft of the linear drive is fixedly connected with the round rod.

[0022] Preferably, a vertically arranged positioning hole is opened at the center of the workbench, a positioning pin is vertically arranged at the positioning hole, a positioning column coaxial with the positioning pin is arranged at the bottom of the positioning pin, and the positioning column is inserted into the positioning hole.

[0023] Preferably, the grinding mechanism comprises an industrial grinding robot arm and a grinding head, and the grinding head is installed at the output end of the industrial grinding robot arm.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. This application can facilitate the staff to quickly place the disc spring at the center of the workbench during the processing and production process by setting a positioning component, and then fix the disc spring through the pressing component, thereby ensuring the processing accuracy of the disc spring.

[0026] 2. The clamp described in the present application can clamp disc springs of various specifications and models, thereby improving the applicability of the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of a disc spring processing and grinding device of the present application;

[0028] Figure 2 This is a three-dimensional diagram of a disc spring processing and grinding device of the present application with the positioning pin hidden;

[0029] Figure 3 It is an exploded view of a workbench and a positioning pin of a disc spring processing and grinding device of the present application;

[0030] Figure 4 It is a three-dimensional diagram of a pressing component of a disc spring processing and grinding device of the present application;

[0031] Figure 5 It is an exploded view of a first rectangular seat and a round rod of a disc spring processing and grinding device of the present application.

[0032] The numbers in the figure are:

[0033] R- disc spring;

[0034] 1-working table; 11-strip groove; 12-threaded hole; 13-positioning hole; 14-positioning pin; 141-positioning column;

[0035] 2-grinding mechanism; 21-industrial grinding robot arm; 22-grinding head;

[0036] 3-clamp; 31-positioning assembly; 311-positioning block; 32-pressing assembly; 321-pressing block; 322-connecting plate; 323-round rod; 324-first rectangular seat; 3241-first guide hole; 325-linear drive module; 3251-second rectangular seat; 3252-linear drive; 4-position adjustment assembly; 41-locking bolt; 42-connecting block; 421-strip hole. DETAILED DESCRIPTION

[0037] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] See also Figures 1 to 5As shown, a disc spring processing and grinding device comprises a workbench 1 and a grinding mechanism 2 for grinding the inner hole wall of the disc spring R;

[0039] A fixture 3 for fixing the disc spring R is provided on the workbench 1;

[0040] The fixture 3 includes a positioning assembly 31 that can quickly position the disc spring R at the center of the workbench 1 and a pressing assembly 32 that can press the disc spring R against the positioning assembly 31 .

[0041] The disc spring is in the shape of a conical disk and has an inner hole. When grinding the inner hole wall of the disc spring R, the staff first places the grinded disc spring R horizontally on the workbench 1, and then the positioning component 31 can quickly position the disc spring R to the center of the workbench 1, and then the pressing component 32 can fix the disc spring R at the center of the workbench 1. At this time, the inner hole wall of the disc spring R can be grinded by running the grinding mechanism 2. After the disc spring R is ground, the contact clamp 3 fixes the disc spring R, so that the disc spring R can be removed, thereby completing a working cycle.

[0042] See also Figures 1 to 3 As shown, the positioning assembly 31 includes two positioning blocks 311, and the two positioning blocks 311 are both horizontally arranged on the workbench 1;

[0043] The workbench 1 is provided with two transversely extending strip grooves 11, the inner angle between the two strip grooves 11 is 120 degrees, and the ends of the two strip grooves 11 that are close to each other both point to the center of the workbench 1;

[0044] The two positioning blocks 311 are slidably disposed in the two strip grooves 11 , respectively. Each strip groove 11 is also provided with a position adjustment component 4 for fixing the position of the corresponding positioning block 311 .

[0045] Before processing different batches of disc springs R, the positions of the two positioning blocks 311 need to be calibrated. First, the staff takes out a standard part of the disc spring R of the processing batch, and then places the disc spring R standard part at the center of the workbench 1. Then, the positions of the two positioning blocks 311 in their corresponding strip grooves 11 are adjusted by two sets of position adjustment components 4, until the two positioning blocks 311 are both against the outer wall of the disc spring R standard part. At this time, the positions of the two positioning blocks 311 can be fixed, and the position calibration of the two positioning blocks 311 is completed. Then, the staff The grinding mechanism 2 is manually operated to position the grinding position of the grinding mechanism 2 at the inner hole wall of the disc spring R; during the actual grinding process, the staff places the unprocessed disc spring R on the workbench 1, and presses the outer walls of the disc spring R against the two positioning blocks 311, thereby ensuring that the disc spring R is at the center of the workbench 1, and then the disc spring R is fixed by the pressing assembly 32, and then the staff can start the grinding mechanism 2 to grind the inner hole of the disc spring R, thereby completing the grinding of the disc spring R, which can effectively improve the smoothness of the inner hole wall of the disc spring R.

[0046] See also Figure 2 and Figure 3 As shown, the two sets of position adjustment components 4 each include a locking bolt 41 and a connecting block 42;

[0047] The two connecting blocks 42 are respectively slidably disposed in the two strip-shaped grooves 11, and the two connecting blocks 42 are respectively fixedly connected to the two positioning blocks 311;

[0048] A strip hole 421 is formed at the upper end of each connection block 42 , a threaded hole 12 is formed at the bottom of each strip groove 11 , and two locking bolts 41 pass through the two strip holes 421 and are threadedly connected to the corresponding threaded holes 12 .

[0049] By providing the strip hole 421, it is possible to ensure that the connecting block 42 can change its position in the corresponding strip groove 11 while still being fixed in the strip groove 11 by the locking bolt 41, so that the connecting block 42 can be fixed in the corresponding strip groove 11 in multiple positions. Because the connecting block 42 is fixedly connected to the positioning block 311, the change in the position of the connecting block 42 can also change the position of the positioning block 311. Therefore, when the position of the positioning block 311 needs to be changed, it is only necessary to remove the corresponding locking bolt 41. After selecting a suitable position, the locking bolt 41 can be threaded into the threaded hole 12 by passing the corresponding strip hole 421. The position of the connecting block 42 can be fixed by the longitudinal clamping force of the locking bolt 41.

[0050] See also Figures 1 to 5As shown, the pressing assembly 32 includes a pressing block 321, a connecting plate 322, a round rod 323, a first rectangular seat 324 and a linear drive module 325;

[0051] The pressing block 321 is arranged on the workbench 1, the first rectangular seat 324 is installed on the workbench 1, the first rectangular seat 324 is provided with a first guide hole 3241, and the round rod 323 is slidably arranged in the first guide hole 3241;

[0052] The round rod 323 is disposed transversely above the workbench 1, and the angle between the length direction of the round rod 323 and the length direction of the two strip-shaped grooves 11 is 120 degrees;

[0053] One end of the round rod 323 close to the two strip grooves 11 is fixedly connected to the pressing block 321 through the connecting plate 322;

[0054] The linear driving module 325 is disposed on a side of the round rod 323 away from the two strip grooves 11 and is used to drive the round rod 323 to slide along the first guide hole 3241 .

[0055] Since the pressure block 321 is set on the workbench 1, when the disc spring R to be processed is positioned to the center of the workbench 1 by the positioning assembly 31, the linear drive module 325 can drive the round rod 323 to slide along the first guide hole 3241 and move toward the direction close to the two strip grooves 11, thereby, under the action of the connecting plate 322, the pressure block 321 can gradually approach the disc spring R, and finally, the pressure block 321 will abut on the disc spring R, and under the abutting action of the pressure block 321, the disc spring R can be horizontally clamped by the pressure block 321 and the two positioning blocks 311, and the disc spring R can be polished at this time. After the polishing of the disc spring R is completed, the linear drive module 325 drives the pressure block 321 to reset, thereby the disc can be removed.

[0056] See also Figure 2 and Figure 4 As shown, the linear drive module 325 includes a second rectangular seat 3251 and a linear drive 3252;

[0057] The second rectangular seat 3251 is fixedly mounted on the workbench 1 , the linear driver 3252 is mounted on the second rectangular seat 3251 , the output shaft of the linear driver 3252 is coaxially arranged with the round rod 323 , and the output shaft of the linear driver 3252 is fixedly connected with the round rod 323 .

[0058] The linear drive 3252 is preferably a servo electric cylinder. The running speed of the linear drive 3252 should be adjusted to a slow speed to prevent the pressure block 321 from moving too fast and bouncing the disc spring R away. The pressure block 321 can be driven to move on the workbench 1 by the operation of the linear drive 3252.

[0059] See also Figure 1 and Figure 3 As shown, a vertical positioning hole 13 is opened at the center of the workbench 1 , a positioning pin 14 is vertically arranged at the positioning hole 13 , a positioning column 141 coaxial with the positioning pin 14 is arranged at the bottom thereof, and the positioning column 141 is inserted into the positioning hole 13 .

[0060] There should be multiple locating pins 14, and the diameters of the multiple locating pins 14 should correspond one-to-one to the inner diameters of disc springs R of different processing models. Therefore, before processing disc springs R of different models, the staff takes out the corresponding locating pins 14, so that the locating pins 14 are installed in the locating holes 13. Therefore, when the staff calibrates the positions of the two locating blocks 311, the disc spring R standard parts can be directly mounted on the locating pins 14, thereby quickly positioning the disc spring R at the center of the workbench 1, which is convenient for the staff's operation. After the positioning of the two locating blocks 311 is completed, the staff needs to remove the locating pins 14 at the locating holes 13 to avoid affecting normal processing.

[0061] See also Figure 1 and Figure 2 As shown, the grinding mechanism 2 includes an industrial grinding robot arm 21 and a grinding head 22 , and the grinding head 22 is installed at the output end of the industrial grinding robot arm 21 .

[0062] The industrial grinding robot arm 21 is a prior art and will not be introduced in detail here. The operation of the industrial grinding robot arm 21 can drive the grinding head 22 to rotate. Because the industrial grinding robot arm 21 can drive the grinding head 22 to move to any position, the grinding head 22 can grind the inner hole of the disc spring R fixed on the workbench 1.

[0063] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A disc spring processing and grinding device, comprising a workbench (1) and a grinding mechanism (2) for grinding the inner hole wall of a disc spring (R); It is characterized in that A clamp (3) for fixing the disc spring (R) is arranged on the workbench (1); The clamp (3) comprises a positioning component (31) capable of quickly positioning the disc spring (R) at the center of the workbench (1) and a pressing component (32) capable of pressing the disc spring (R) against the positioning component (31).

2. A disc spring processing and grinding device according to claim 1, characterized in that: The positioning assembly (31) comprises two positioning blocks (311), and the two positioning blocks (311) are both horizontally arranged on the workbench (1); The workbench (1) is provided with two transversely extending strip grooves (11), the inner angle between the two strip grooves (11) is 120 degrees, and the ends of the two strip grooves (11) that are close to each other both point to the center of the workbench (1); The two positioning blocks (311) are respectively slidably arranged in the two strip-shaped grooves (11), and each strip-shaped groove (11) is also provided with a position adjustment component (4) for fixing the position of the corresponding positioning block (311).

3. A disc spring processing and grinding device according to claim 2, characterized in that: The two sets of position adjustment components (4) each include a locking bolt (41) and a connecting block (42); The two connection blocks (42) are respectively slidably disposed in the two strip-shaped grooves (11), and the two connection blocks (42) are respectively fixedly connected to the two positioning blocks (311); A strip hole (421) is formed at the upper end of each connection block (42), a threaded hole (12) is formed at the bottom of each strip groove (11), and two locking bolts (41) pass through the two strip holes (421) and are threadedly connected to the corresponding threaded holes (12) respectively.

4. A disc spring processing and grinding device according to claim 3, characterized in that: The pressing assembly (32) comprises a pressing block (321), a connecting plate (322), a round rod (323), a first rectangular seat (324) and a linear drive module (325); The pressing block (321) is arranged on the workbench (1), the first rectangular seat (324) is installed on the workbench (1), a first guide hole (3241) is opened on the first rectangular seat (324), and the round rod (323) is slidably arranged in the first guide hole (3241); The round rod (323) is transversely arranged above the workbench (1), and the included angle between the length direction of the round rod (323) and the length direction of the two strip-shaped grooves (11) is 120 degrees; One end of the round rod (323) close to the two strip grooves (11) is fixedly connected to the pressing block (321) via a connecting plate (322); The linear drive module (325) is arranged on a side of the round rod (323) away from the two strip grooves (11) and is used to drive the round rod (323) to slide along the first guide hole (3241).

5. The disc spring processing and grinding device according to claim 4, characterized in that: The linear drive module (325) comprises a second rectangular seat (3251) and a linear drive (3252); The second rectangular seat (3251) is fixedly mounted on the workbench (1), the linear drive (3252) is mounted on the second rectangular seat (3251), the output shaft of the linear drive (3252) is coaxially arranged with the round rod (323), and the output shaft of the linear drive (3252) is fixedly connected with the round rod (323).

6. The disc spring processing and grinding device according to claim 5, characterized in that: A vertically arranged positioning hole (13) is provided at the center of the workbench (1), a positioning pin (14) is vertically arranged at the positioning hole (13), a positioning column (141) coaxial with the positioning pin (14) is arranged at the bottom of the positioning pin (14), and the positioning column (141) is inserted into the positioning hole (13).

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