Scroll plate forging die grinding equipment

Abstract

The invention relates to the field of scroll plate forging die grinding, and discloses scroll plate forging die grinding equipment which comprises a base, the base is used for fixing a die, a support is arranged on the base, a power unit is arranged on the support and comprises a main shaft, the main shaft is used for rotating in a reciprocating mode within a small angle range, and the main shaft is vertically arranged and is in threaded connection with the support. A grinding tool is arranged at the lower end of the main shaft and used for grinding the mold. Large-area grinding is carried out on the mold in a micro-motion mode, and the grinding efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of scroll disk forging die grinding, and in particular to scroll disk forging die grinding equipment. Background Art

[0002] The scroll disk is a key component in the electric air conditioner of new energy vehicles. It mainly compresses the refrigerant through the high-speed and small-radius rotation of the moving disk (generally 10,000 to 15,000 rpm) to obtain a higher-pressure refrigerant output, producing an efficient cooling effect.

[0003] A spiral structure needs to be set on the scroll disk forging die to produce the scroll disk; in order to improve the production quality, the die needs to be polished. However, due to its special spiral structure, conventional grinding tools cannot perform precise rotational or reciprocating motion to grind a large area. Only small grinding tools can be used to grind little by little, which is inefficient and has poor grinding quality. Summary of the invention

[0004] The present invention aims to provide a scroll disk forging die grinding device, which can grind the die over a large area in a micro-motion manner and has high grinding efficiency.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a scroll disc forging die grinding device, comprising a base, the base is used to fix the die, the base is provided with a bracket, the bracket is provided with a power unit, the power unit comprises a main shaft, the main shaft is used to reciprocate within a small angle range, the main shaft is vertically arranged and threadedly connected to the bracket, a grinding tool is provided at the lower end of the main shaft, and the grinding tool is used to grind the die.

[0006] The beneficial effects of this program are:

[0007] 1. The main shaft drives the grinding tool to reciprocate, so that the grinding tool continuously slides and rubs against the spiral structure of the mold in the horizontal direction; thereby achieving large-area grinding of the mold and improving the grinding efficiency.

[0008] 2. Since the main shaft and the bracket are threadedly connected, the main shaft will drive the grinding tool to move up and down while rotating, so that the grinding tool will continuously slide and rub against the spiral structure of the mold in the vertical direction; thereby achieving large-area grinding of the mold and improving grinding efficiency.

[0009] 3. This solution adopts micro-motion to reduce the range of motion of the grinding tool and adopts high-frequency reciprocating motion for grinding. It is suitable for grinding products with complex structures such as scroll disk forging dies.

[0010] Furthermore, the bracket includes a crossbeam and a column, the upper ends of the crossbeam and the columns are connected, a motor is provided at one end of the crossbeam, the main shaft is arranged at the other end of the crossbeam, the upper end of the main shaft is dynamically connected to the output shaft of the motor, and the motor is used to drive the main shaft to reciprocate within a small angle range.

[0011] Furthermore, a pulley is provided at the upper end of the main shaft, and the pulley and the output shaft of the motor are connected through a belt.

[0012] Furthermore, the grinding tool includes a connecting part, a positioning plate and a grinding part, the connecting part is used to connect with the main shaft, the positioning plate is used to contact with the upper surface of the mold, and the grinding part is used to be inserted into the mold and grind the inner side of the mold.

[0013] Furthermore, a vortex groove is provided on the mold, and a first vortex protrusion is formed outside the vortex groove on the mold. A second vortex protrusion is provided on the lower side of the grinding tool to match the vortex groove gap. The second vortex protrusion is inserted into the vortex groove, and the side of the second vortex protrusion is used to grind the first vortex protrusion.

[0014] Furthermore, the first vortex protrusion and the second vortex protrusion are centrally symmetrical.

[0015] Furthermore, a mounting hole is provided at the end of the crossbeam, a connecting pipe is provided in the mounting hole, the main shaft passes through the connecting pipe and is threadedly connected to the connecting pipe, and a limiting structure is provided in the mounting hole, which is used to limit the rotation of the connecting pipe.

[0016] Furthermore, a buffer pad is provided between the mounting hole and the lower end of the connecting pipe, and a plurality of return springs are provided circumferentially between the upper portion of the mounting hole and the connecting pipe.

[0017] Furthermore, the limiting structure includes a limiting strip and a limiting groove, the limiting strip is vertically arranged on the inner side of the mounting hole, and the limiting groove is vertically arranged on the outer side of the connecting pipe;

[0018] In the initial state, the limit strip is partially inserted into the limit slot, and a gap is left between the limit strip and the limit slot;

[0019] When the connecting pipe approaches the mounting hole from one direction, the limiting strip slides in the limiting groove along the direction.

[0020] Furthermore, a vibration table is provided on the base, and the mold is installed on the vibration table.

[0021] This solution also has the following effects:

[0022] 1. In this solution, in order to adapt to the effect of micro-motion, the transmission in all directions is flexible;

[0023] Specifically, the motor drives the spindle and grinding tool in sequence through the belt. When the grinding tool encounters an obstacle, the belt will slip and the grinding tool will stop rotating, thereby preventing the grinding tool from damaging the mold. At the same time, although the spindle will move up and down while rotating, as long as the up and down movement is within a certain range, the belt can transfer kinetic energy to the spindle, thereby ensuring the continuity of grinding and then ensuring the grinding effect.

[0024] 2. Directly adopt the combination of beams and columns, so that the main shaft at the end of the beam is cantilevered. During the grinding process, the main shaft drives the end of the beam to shake and deform, so that both the beam and the column have a more obvious micro-motion effect, thereby improving the grinding efficiency.

[0025] 3. The lower surface of the positioning plate of the grinding tool contacts the upper surface of the mold, thereby realizing the positioning of the grinding tool and the positioning plate.

[0026] 4. The first vortex protrusion and the second vortex protrusion are symmetrical about the center. When the main shaft drives the second vortex protrusion to rotate in the forward direction, one side of the first vortex protrusion can be ground; when the main shaft drives the second vortex protrusion to rotate in the reverse direction, the other side of the first vortex protrusion can be ground, and the bracket and the main shaft are driven to vibrate through the belt to further enhance the grinding effect.

[0027] 5. The connecting tube and the mounting hole are not fixedly connected but flexibly connected: a spring is installed between the upper part of the mounting hole and the connecting tube to increase the shaking of the connecting tube during grinding; a buffer pad is installed between the lower end of the mounting hole and the connecting tube for fixing, thereby ensuring that the connecting tube shakes around the fixed center without excessively deviating from the original position, thereby increasing the shaking amplitude and enhancing the grinding effect.

[0028] 6. In order to ensure that the main shaft can produce the effect of moving up and down at the same time when rotating, relative rotation is required between the main shaft and the connecting tube, so the rotation of the connecting tube needs to be limited. In this solution, the rotation of the connecting tube is limited by the combination of the limit bar and the limit groove, thereby ensuring that the main shaft can produce the effect of moving up and down at the same time when rotating.

[0029] 7. Increase the shaking of the mold through the vibration table to improve the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional axonometric drawing of Example 1;

[0031] Figure 2 A three-dimensional top view of the grinding tool of Example 1;

[0032] Figure 3 A three-dimensional bottom view of the grinding tool of Example 1;

[0033] Figure 4A three-dimensional axonometric view of the mold ground in Example 1;

[0034] Figure 5 Schematic diagram of the planar relationship between the first vortex protrusion and the second vortex protrusion in Example 1;

[0035] Figure 6 is a cross-sectional view of the end of the beam of Example 2;

[0036] Figure 7 for Figure 6 AA section view. DETAILED DESCRIPTION

[0037] The following is further described in detail through specific implementation methods:

[0038] The figure marks in the drawings of the specification include: base 1, vibration table 2, column 31, beam 32, mounting hole 33, connecting pipe 34, buffer pad 35, return spring 36, limit bar 37, limit groove 38, motor 4, main shaft 5, pulley 6, belt 7, grinding tool 8, connecting part 81, positioning plate 82, grinding part 83, first vortex protrusion 84, mold 9, vortex groove 91, first vortex protrusion 92.

[0039] Example 1

[0040] Example 1 is basically as Figure 1-Figure 5 As shown: the scroll disk forging die grinding equipment includes a base 1, the base 1 is bolted with a vibration table 2, the vibration table 2 has a built-in vibration motor, and the vibration table 2 is used to fix the scroll disk forging die 9, as shown in FIG. Figure 1 As shown, an inverted L-shaped bracket is provided on the base 1, and the bracket includes a crossbeam 32 and a column 31 which are perpendicular to each other. The lower end of the column 31 is bolted to the base 1, and the upper end of the column 31 is bolted to the crossbeam 32. The right end of the crossbeam 32 is bolted to the motor 4, and the left end of the crossbeam 32 is threaded to the main shaft 5. The main shaft 5 is vertically arranged, and a pulley 6 is integrally formed on the upper end of the main shaft 5. The pulley 6 and the output shaft of the motor 4 are connected by a belt 7. The working state of the motor 4 includes a rotating state and a high-frequency reciprocating state:

[0041] In the rotating state, the output shaft of the motor 4 rotates in one direction;

[0042] In the high-frequency reciprocating state, the output shaft of the motor 4 drives the main shaft 5 to reciprocate within a small angle range; the small angle refers to an acute angle.

[0043] The lower end of the spindle 5 is provided with an external thread, and the lower end of the spindle 5 is detachably connected with a grinding tool 8, which is used to grind the mold 9. The grinding of the mold 9 is generally divided into rough grinding, semi-fine grinding and fine grinding, which correspond to three types of grinding tools 8 respectively. The three types of grinding tools 8 can be interchangeably connected to the lower end of the spindle 5 by threads, such as Figure 2 , Figure 3As shown, the three grinding tools 8 all include an integrally formed connecting portion 81, a positioning plate 82 and a grinding portion 83, the connecting portion 81 being used for threaded connection with the spindle 5, the positioning plate 82 being used for contacting the upper surface of the mold 9, and the grinding portion 83 being used for inserting into the mold 9 and grinding the inner side of the mold 9.

[0044] like Figure 4 As shown, since the mold 9 is provided with a vortex groove 91, the first vortex protrusion 84 is formed outside the vortex groove 91 on the mold 9. Therefore, in this embodiment, Figure 3 As shown, the lower side of the grinding portion 83 is integrally formed with a second vortex protrusion that is gap-matched with the vortex groove 91. The second vortex protrusion is inserted into the vortex groove 91, and the side surface of the second vortex protrusion is used to grind the first vortex protrusion, as shown in FIG. Figure 5 As shown, the first vortex protrusion 84 and the second vortex protrusion are centrally symmetrically arranged. For easy distinction, the first vortex protrusion 84 is indicated by diagonal lines in the figure.

[0045] Example 2

[0046] Embodiment 2 is based on embodiment 1: Figure 1 In the figure, the left end of the beam 32 is as shown in FIG. Figure 6 As shown, a mounting hole 33 is vertically opened at the left end of the crossbeam 32, a connecting pipe 34 is provided in the mounting hole 33, a buffer pad 35 is filled between the mounting hole 33 and the lower end of the connecting pipe 34, and the buffer pad 35 is made of rubber. A number of return springs 36 are circumferentially adhered between the upper part of the mounting hole 33 and the connecting pipe 34.

[0047] The main shaft 5 passes through the connecting tube 34 and is threadedly connected to the connecting tube 34. A limiting structure is provided in the mounting hole 33, and the limiting structure is used to limit the rotation of the connecting tube 34. Figure 7 As shown, the limiting structure includes a plurality of limiting strips 37 and limiting grooves 38. The plurality of limiting strips 37 are vertically and circumferentially arranged and integrally formed on the inner side of the mounting hole 33. The plurality of limiting grooves 38 are circumferentially and vertically opened on the outer side of the connecting pipe 34. The limiting strips 37 and the limiting grooves 38 correspond to each other one by one.

[0048] In the initial state, the limiting strip 37 is partially inserted into the limiting groove 38, and a gap is left between the limiting strip 37 and the limiting groove 38, which allows the connecting hole to move a small distance in any horizontal direction, thereby forming a micro-motion effect;

[0049] When the connecting tube 34 approaches the mounting hole 33 from one of the horizontal directions, the limiting strip 37 slides in the limiting groove 38 along the direction, and then the connecting tube 34 is reset under the action of the reset spring 36 .

[0050] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Scroll forging die grinding equipment, characterized by: It includes a base, which is used to fix the mold. The base is provided with a bracket, and the bracket is provided with a power unit. The power unit includes a main shaft, which is used to reciprocate within a small angle range. The main shaft is vertically arranged and threadedly connected to the bracket. A grinding tool is provided at the lower end of the main shaft, and the grinding tool is used to grind the mold.

2. The scroll forging die grinding equipment according to claim 1, characterized in that: The bracket includes a crossbeam and a column, the upper ends of the crossbeam and the columns are connected, a motor is provided at one end of the crossbeam, the main shaft is arranged at the other end of the crossbeam, the upper end of the main shaft is connected to the output shaft of the motor, and the motor is used to drive the main shaft to reciprocate within a small angle range.

3. The scroll forging die grinding equipment according to claim 2, characterized in that: A pulley is arranged at the upper end of the main shaft, and the pulley and the output shaft of the motor are connected through a belt.

4. The scroll forging die grinding equipment according to claim 3 is characterized in that: The grinding tool includes a connecting part, a positioning plate and a grinding part. The connecting part is used to connect with the main shaft, the positioning plate is used to contact with the upper surface of the mold, and the grinding part is used to insert into the mold and grind the inner side of the mold.

5. The scroll disk forging die grinding device according to claim 4, wherein a scroll groove is provided on the die, and a first scroll protrusion is formed outside the scroll groove on the die, characterized in that: A second vortex protrusion which is in clearance fit with the vortex groove is arranged on the lower side of the grinding tool. The second vortex protrusion is inserted into the vortex groove, and the side surface of the second vortex protrusion is used for grinding the first vortex protrusion.

6. The scroll forging die grinding equipment according to claim 5, characterized in that: The first vortex protrusion and the second vortex protrusion are centrally symmetrical.

7. The scroll forging die grinding equipment according to claim 6, characterized in that: A mounting hole is provided at the end of the crossbeam, a connecting pipe is provided in the mounting hole, the main shaft passes through the connecting pipe and is threadedly connected to the connecting pipe, and a limiting structure is provided in the mounting hole, which is used to limit the rotation of the connecting pipe.

8. The scroll forging die grinding equipment according to claim 7, characterized in that: A buffer pad is arranged between the mounting hole and the lower end of the connecting pipe, and a plurality of return springs are arranged circumferentially between the upper part of the mounting hole and the connecting pipe.

9. The scroll forging die grinding equipment according to claim 8, characterized in that: The limiting structure includes a limiting strip and a limiting groove, wherein the limiting strip is vertically arranged on the inner side of the mounting hole, and the limiting groove is vertically arranged on the outer side of the connecting pipe; In the initial state, the limit strip is partially inserted into the limit slot, and a gap is left between the limit strip and the limit slot; When the connecting pipe approaches the mounting hole from one direction, the limiting strip slides in the limiting groove along the direction.

10. The scroll forging die grinding equipment according to claim 9, characterized in that: A vibration table is arranged on the base, and the mold is installed on the vibration table.

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