Grinding equipment for bearing machining

Abstract

The invention relates to the technical field of grinding equipment, and discloses bearing machining grinding equipment which comprises a feeding disc body, a plurality of grooves are formed in the circumferential side of the feeding disc body in an annular array mode, a driving belt is arranged on one side of the feeding disc body, and the driving belt is annularly attached to the edge section of the feeding disc body. The moving direction of the driving belt is opposite to the moving direction of the feeding disc body, an indicator lamp is fixedly installed at the position, close to the groove, of the surface of the feeding disc body, when the two contact switches make contact and are switched on, the indicator lamp is made to be in the red state and the green state, and the grinding allowance state is judged according to the color and the position of the light. The contacts are arranged at the two supporting springs in the same material receiving groove, the indicating lamps are pressed to be connected to display red and green, the driving belt is matched, the grinding allowance condition can be judged, the abrasion condition of the grinding wheel can be judged in an auxiliary mode, and therefore unqualified products can be screened out in advance, the defective rate is reduced, and the invalid labor amount of the follow-up detection process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to a bearing processing grinding equipment. Background Art

[0002] The main function of the bearing is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. General bearings are composed of inner rings, outer rings, balls, and end seals. The production and processing of bearings requires grinding of the sequentially formed structures, such as opening grooves in the inner and outer rings of the bearings, matching the diameters of the inner and outer rings after grinding, and high precision requirements; grinding the two end faces of the inner and outer rings to accurately control the thickness of the bearing.

[0003] In order to improve the production and processing efficiency, double-end surface grinders are used for synchronous parallel grinding of the end faces of the inner and outer rings of bearings. According to the structure, it can be divided into horizontal and vertical types. According to the feeding method, it can be divided into through-type, turntable type and reciprocating type. It generally includes basic structures such as grinding mechanism, workpiece conveying mechanism, correction mechanism, cooling mechanism, automatic detection mechanism and control mechanism.

[0004] Among them, the grinding mechanism consists of two symmetrically arranged grinding wheels and a feed plate located between the two grinding wheels. The edge of the feed plate is slotted, and the workpiece conveying mechanism feeds the workpieces to be ground into the slot from the top. As the feed plate rotates, the bearing ring is fed between the two grinding wheels for grinding. When the grinding is completed, the feed plate turns the ring to the bottom, and the ring falls freely due to gravity.

[0005] During the grinding process, it is necessary to control the grinding wheel speed and feed rate according to the requirements of material, precision, etc., to ensure that the grinding requirements can be completed when the feed plate rotates the ring to leave the grinding wheel. In addition, the grinding wheel is worn, and the feed mechanism is required to automatically compensate for the wear to ensure that the grinding accuracy is qualified. When the wear is serious, the grinding wheel needs to be regularly trimmed. However, in the actual production operation process, due to the different degrees of wear of the grinding wheel, it is difficult to determine whether the grinding allowance of the ring is qualified after one grinding. Subsequent processes are also required to measure and screen the thickness of the ring after grinding, and the defective rate is relatively high. The present invention aims to improve the feed plate to achieve pre-screening of qualified grinding. Summary of the invention

[0006] In view of the shortcomings of the existing double-end surface grinders mentioned in the background technology during use, the present invention provides a bearing processing and grinding equipment, which has the advantages of improving grinding efficiency, adapting to workpieces of different sizes, screening out unqualified products in advance and reducing the defective rate, thereby solving the problems raised by the above background technology.

[0007] The present invention provides the following technical solution: a bearing processing and grinding device, comprising a feed tray body, a plurality of grooves are provided in a circular array on the circumferential side of the feed tray body, a drive belt is provided on one side of the feed tray body, the drive belt is annularly fitted to the edge section of the feed tray body, and the movement direction of the drive belt is opposite to the movement direction of the feed tray body.

[0008] Preferably, a material receiving groove is provided in the groove and can only move within the plane of the feeding tray body.

[0009] Preferably, an arc-shaped clamping block is provided in the groove, and the arc-shaped clamping block is clamped with the material receiving groove in a convex and concave form to form a movable buckle. A T-slot is opened in the arc-shaped middle part of the material receiving groove, and a fastening bolt is movably sleeved in the T-slot. The fastening bolt passes through the material receiving groove and is tightened and fixed with the arc-shaped clamping block thread. A gap is left between the T-slot and the fastening bolt, and support springs are fixedly installed at both ends of the outer peripheral groove of the material receiving groove.

[0010] Preferably, a contact switch is provided inside the support spring, and an indicator light is fixedly installed on the surface of the feed tray body near the groove. When the two contact switches are in contact and conducted, the indicator lights turn red or green respectively, and the state of the grinding allowance is judged according to the light color and the current position of the feed tray body.

[0011] Preferably, the positions of the indicator lights on the feeding tray body are interchanged.

[0012] Preferably, the indicator light is powered by a button battery installed on the feeding tray body.

[0013] Preferably, during the continuous rotation of the feed tray body, there are always 2 to 3 grooves located at the edge section of the driving belt to fit.

[0014] The present invention has the following beneficial effects: 1. The present invention adds a driving belt to the side of the feed tray body. When the driving belt cooperates with the feed tray body, the workpiece to be ground can rotate under the grinding action of the grinding wheel, thereby improving the grinding efficiency.

[0015] 2. The present invention can adapt workpieces of different sizes to be ground by providing a material receiving trough that can only move in the same plane and cooperating with a driving belt.

[0016] 3. The present invention sets contacts at two supporting springs in the same material receiving trough, and the indicator light is turned on under pressure to display red and green. In conjunction with the drive belt, the grinding allowance can be judged and the wear of the grinding wheel can be assisted to judge, so that unqualified products can be screened out in advance, the defective rate can be reduced, and the ineffective labor in the subsequent detection process can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the internal structure of the middle receiving trough; Figure 3 For the present invention Figure 2 Schematic diagram of the structure splitting; Figure 4 For the present invention Figure 2 Sectional view at point aa; Figure 5 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 6 For the present invention Figure 5 Sectional view at bb in the middle; Figure 7 This is a structural schematic diagram of the support spring of the present invention; Figure 8 It is a schematic diagram of the fastening bolt structure of the present invention.

[0018] In the figure: 1. Feed tray body; 2. Arc-shaped clamping block; 3. Material receiving trough; 4. Support spring; 5. T-slot; 6. Fastening bolt; 7. Driving belt; 8. Tensioning wheel; 9. Moving contact; 10. Static contact; 11. Indicator light; 100. Workpiece to be ground. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 3 A bearing processing and grinding device includes a feed tray body 1, and a groove is opened on the peripheral side of the feed tray body 1. The grooves are distributed in a circular array around the feed tray body 1. This is a feed tray in the traditional sense. An arc-shaped clamping block 2 is arranged in the groove. The arc-shaped clamping block 2 and the feed tray body 1 can be integrally formed, or can be fixed by welding or anchor bolts. The inner arc edge of the arc-shaped clamping block 2 is clamped with a material receiving groove 3. The arc-shaped clamping block 2 and the material receiving groove 3 are clamped in a convex and concave form to form a movable buckle. Before any fixation, the material receiving groove 3 can be directly taken out from the arc-shaped clamping block 2. After the material receiving groove 3 is buckled on the arc-shaped clamping block 2, a new feed tray groove is formed.

[0021] The buckling fixing method of the material receiving trough 3 and the arc-shaped clamping block 2 adopts the following structure: a T-slot 5 is provided in the concave part of the arc-shaped middle part of the material receiving trough 3, and a fastening bolt 6 is movably sleeved in the T-slot 5. The fastening bolt 6 passes through the material receiving trough 3 and is screwed and fixed with the arc-shaped clamping block 2. There is a gap between the T-slot 5 and the fastening bolt 6, and there is no fixed contact. The gap is used to provide a space for making way when the material receiving trough 3 moves. Support springs 4 are fixedly installed at both ends of the outer peripheral groove of the material receiving trough 3. When the fastening bolts 6 tighten the material receiving trough 3 on the arc-shaped clamping block 2, the support springs 4 contact and are compressed with the inner concave surface of the arc-shaped clamping block 2. Since then, under the fixation of the fastening bolts 6 and the support of the two support springs 4, the material receiving trough 3 is movably installed on the arc-shaped clamping block 2. Since the arc-shaped clamping block 2 is buckled and connected with the material receiving trough 3, the movement of the material receiving trough 3 relative to the arc-shaped clamping block 2 can only exist in the plane of the feeding tray body 1.

[0022] A driving belt 7 is provided on one side of the feed tray body 1. The driving belt 7 has an annular edge section (hereinafter referred to as the working section) that fits the feed tray body 1 through guide wheels that are symmetrically arranged up and down, and the driving belt 7 is tensioned and adjusted in real time through the tensioning wheel 8. The grinding wheel grinding area is located in the proximity section between the feed tray body 1 and the driving belt 7. During the continuous rotation of the feed tray body 1, there are always 2 to 3 grooves located in the working section area. The driving belt 7 is used to cooperate with the feed tray body 1 to press the workpiece 100 to be ground in the groove. While the grinding wheel is grinding the two end faces of the workpiece 100 to be ground, the driving belt 7 is used to apply resistance to the surface of the workpiece 100 to be ground so that the workpiece 100 to be ground rotates, which helps to improve the grinding efficiency and grind evenly.

[0023] See also Figure 5 , Figure 6 and Figure 7 , a moving contact 9 and a static contact 10 are provided in the support spring 4, and the moving contact 9 and the static contact 10 act as contacts for electrical connection. The moving contact 9 and the static contact 10 can be installed in the following manner: the static contact 10 is fixedly installed on the end of the support spring 4, and assisted by an insulating pad, which is in contact with the surface of the arc block 2 when the installation is completed, and one side of the moving contact 9 is synchronously fixed to the surface of the receiving trough 3 with the support spring 4 through an insulating rod. An indicator light 11 is fixedly installed on the surface of the feed tray body 1 near the groove, and the indicator light 11 can indicate the status through red and green visible light. When the two groups of moving contacts 9 and static contacts 10 in the same groove are in contact and conductive, the indicator light 11 lights up in red and green states respectively. Figure 2For example, when it is close to the drive belt 7, the workpiece 100 to be ground in the groove is pressed downward during grinding, so that the moving contact 9 and the static contact 10 below are turned on, and the indicator light 11 can light up in red to indicate that grinding is in progress and the grinding allowance is large. When the grinding is completed and it rotates to the lower part, the workpiece 100 to be ground is mainly squeezed upward by the drive belt 7, so that the moving contact 9 and the static contact 10 above are turned on, and the indicator light 11 can light up in green to indicate that the grinding is completed and the allowance is qualified. Of course, the meanings expressed by the red and green indications are not limited to the above expressions, for example, they can also be expressed interchangeably and are only used for indication.

[0024] The driving belt 7 is driven by the driving motor, and its movement direction is opposite to the rotation direction of the feeding tray body 1 and the grinding direction of the grinding wheel.

[0025] After the workpiece 100 to be ground enters the grinding area, the grinding allowance is sufficient. At this time, the friction force applied by the rotation of the grinding wheel is dominant, so that the workpiece 100 to be ground is pressed downward, driving the receiving trough 3 to be pressed downward; after the grinding is completed, the friction of the grinding wheel on the workpiece 100 to be ground is close to zero, and the workpiece 100 to be ground is dominated by the reverse friction transmission of the driving belt 7, pressing upward, driving the receiving trough 3 to be pressed upward. According to the difference between the two states, different connection instructions can be set respectively.

[0026] Therefore, under normal working conditions, the indication status of the indicator light 11 is always green when the workpiece 100 to be ground is located at the lower right side of the feed tray body 1 and is about to leave the working section. If it displays green in advance, it means that there may be a mismatch between the grinding wheel wear and the feed compensation or the grinding wheel wear is seriously worn and needs to be repaired.

[0027] Since the grinding area has a cooling system and a waste chip protection cover, in order to facilitate intuitive observation, the position of the indicator light 11 on the feed tray body 1 can be interchanged, that is, the contact connection lines of the moving contact 9 and the static contact 10 are connected to the indicator light 11 in the corresponding position. In this way, the judgment can be made by observing the alignment indicator light 11 on the outside of the protective cover.

[0028] Since the energy consumption of the indicator light 11 is not high, a button battery can be laid on the feeding tray body 1 for power supply.

[0029] The method of use of the present invention is as follows: by Figure 2For example, the workpiece 100 to be ground is successively put into the groove at the top of the feeding tray body 1. The feeding tray body 1 rotates clockwise. When it approaches the driving belt 7, it enters the working section. At the same time, the grinding wheel grinds clockwise, and the driving belt 7 drives clockwise. Under normal working conditions, after the workpiece 100 to be ground is ground through the working section, the grinding allowance is just consumed. The workpiece 100 to be ground first presses the moving contact 9 and the static contact 10 below to contact, and then presses the moving contact 9 and the static contact 10 above to contact. The indicator light 11 arranged in the upper left of the feeding tray body 1 changes from red to green. If the indicator light 11 is always red, it means that the first grinding allowance is not completely consumed, and the feed rate and the grinding wheel speed need to be adjusted. If the indicator light 11 changes to green earlier than the normal position, it means that the first grinding allowance is completely consumed, that is, there may be a mismatch between the grinding wheel wear and the feed compensation, or the grinding wheel is severely worn and needs to be repaired.

Claims

1. A bearing processing and grinding device, comprising a feed tray body (1), wherein a plurality of grooves are provided in an annular array around the feed tray body (1), wherein: A driving belt (7) is provided on one side of the feed tray body (1), the driving belt (7) is annularly fitted to an edge section of the feed tray body (1), and the movement direction of the driving belt (7) is opposite to the movement direction of the feed tray body (1).

2. A bearing processing and grinding device according to claim 1, characterized in that: A material receiving groove (3) which is movable only within the plane of the feeding tray body (1) is provided in the groove.

3. A bearing processing and grinding device according to claim 2, characterized in that: An arc-shaped clamping block (2) is arranged in the groove, and the arc-shaped clamping block (2) is clamped with the material receiving groove (3) in a convex and concave manner to form a movable buckle. A T-shaped groove (5) is opened at the arc-shaped middle part of the material receiving groove (3), and a fastening bolt (6) is movably sleeved in the T-shaped groove (5). The fastening bolt (6) passes through the material receiving groove (3) and is screwed and fixed with the arc-shaped clamping block (2). A gap is left between the T-shaped groove (5) and the fastening bolt (6). Support springs (4) are fixedly installed at both ends of the outer peripheral groove of the material receiving groove (3).

4. A bearing processing and grinding device according to claim 3, characterized in that: The contact switch in the support spring (4) is fixedly mounted with an indicator light (11) on the surface of the feed tray body (1) near the groove. When the two contact switches are in contact and turned on, the indicator light (11) lights up in red or green respectively, and the state of the grinding allowance is determined based on the color of the light and the current position of the feed tray body (1).

5. The bearing processing and grinding equipment according to claim 4, characterized in that: The positions of the indicator lights (11) on the feeding tray body (1) are interchanged.

6. The bearing processing and grinding equipment according to claim 4, characterized in that: The indicator light (11) is powered by a button battery placed on the feeding tray body (1).

7. The bearing processing and grinding equipment according to claim 1, characterized in that: During the continuous rotation of the feeding tray body (1), there are always 2 to 3 grooves located at the edge section of the driving belt (7) in contact with each other.

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