Positioning tool for retainer typing and positioning method thereof

Abstract

The present invention belongs to the field of workpiece marking technology, and specifically relates to a positioning fixture for laser marking a retainer, and a positioning method thereof. The fixture comprises two relatively arranged, sloped positioning blocks, the retainer being placed on the sloped surfaces of the two positioning blocks, the retainer outer walls being tangent to the sloped surfaces of the two positioning blocks, and the side surfaces of the positioning blocks being connected to positioning baffles, which contact the end faces of the retainer and axially limit the retainer. The fixture of the present invention can effectively locate the position of the retainer to facilitate laser marking operations, reduce debugging difficulties, have a simple structure, and are easy to operate. A single fixture can process multiple products, reducing production costs.

Description

Technical Field

[0001] The invention belongs to the technical field of workpiece identification, and in particular relates to a positioning tool for retaining frame typing and a positioning method thereof. Background Art

[0002] Deep groove ball retainers feature a riveted connection between the seat and cover. The rivet holes are staggered with the pockets. During machining, the seat and cover are machined together, with the rivet holes aligned one-to-one and engraved with a matching marking located between the two pockets and centered across the overall width. Because the seat and cover are identical, each set is serially numbered to prevent mixing up sets. The serial numbers must be located on both sides of the matching marking, making it difficult to precisely locate the markings on existing tooling. Summary of the Invention

[0003] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to provide a special tooling fixture, which can be used to directly position the typing tooling products and can also process products of various specifications, thereby reducing processing costs and improving work efficiency and product quality.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a positioning tool for retainer typing, comprising two relatively arranged positioning blocks with slopes, the retainer is placed on the slopes of the two positioning blocks, the outer walls of the retainer are tangent to the slopes of the two positioning blocks respectively, the side surfaces of the positioning blocks are connected to the positioning baffle, the positioning baffle contacts the end face of the retainer and limits the retainer axially.

[0005] The end face of the retainer is provided with a plurality of rivet holes, and a pin is arranged in the rivet hole near the end of the positioning baffle. One end of the pin is inserted into the rivet hole, and the other end of the pin is exposed outside the end face of the retainer. The part of the pin exposed from the end face of the retainer rests on the end of the positioning baffle to limit the retainer in the circumferential direction.

[0006] Furthermore, the slope of the positioning block is 30°, and the slope angles of the two positioning blocks are set relative to each other. When the retaining frame is placed on the slope surfaces of the two positioning blocks, there is a gap between the bottom surface of the retaining frame and the typewriter workbench.

[0007] Furthermore, the positioning block is provided with a planar connecting plate, on which a key slot for connecting to the typewriter workbench is provided, and the positioning block is fixed to the typewriter workbench by connecting bolts passing through the key slot.

[0008] Furthermore, two groups of key slots are provided on each planar connecting plate, and a connecting bolt is connected to each end of each group of key slots, and the connecting bolt is an M5 hexagon socket bolt.

[0009] Furthermore, a threaded hole is provided on one of the positioning blocks, and a long waist hole is provided on the positioning baffle. The positioning bolt connects the positioning block and the positioning baffle through the threaded hole and the long waist hole, and locks the relative position of the positioning block and the positioning baffle.

[0010] Furthermore, the positioning bolt is an M5 flat head hexagonal bolt.

[0011] A positioning method for retainer typing, comprising the following steps:

[0012] Step 1: Place two sloping positioning blocks opposite to each other and fix them on the typewriter workbench. Adjust the distance between the two positioning blocks to ensure that when the retainer is placed on the positioning blocks, the bottom of the retainer does not touch the typewriter workbench.

[0013] Step 2: Adjust the position of the positioning baffle by using the test holder, and fix the positioning baffle to the side surface of one of the positioning blocks;

[0014] Step 3: Match the cage seat and cage cover to be typed along the marking line, place the matched cage between the two positioning blocks, with the cage in contact with the slope of the positioning blocks, insert one end of the pin into the rivet hole on the end face of the cage near the end of the positioning baffle, and leave the other end of the pin exposed outside the cage;

[0015] Step 4: Place the end face of the cage against the positioning baffle to limit the cage axially, adjust the position of the pin on the end face of the cage so that the pin is exposed from the end face of the cage and contacts the positioning baffle to limit the cage circumferentially.

[0016] Step 5: Adjust the laser typewriter to type.

[0017] Furthermore, in step 2, adjusting the position of the positioning baffle by using the test holder includes the following steps:

[0018] Step a: Place the test cage vertically between two positioning blocks;

[0019] Step b, adjust the position of the test cage so that the end surface of the test cage is flush with the side surface of the positioning block and the typing position is aligned with the marking line;

[0020] Step c, inserting a test pin into the rivet hole at the bottom of the test holder, and adjusting the position of the positioning baffle so that the end surface of the positioning baffle contacts the test pin;

[0021] Step d: fix the positioning baffle to the side surface of the positioning block away from the test pin.

[0022] Furthermore, in step three, the two adjacent rivet holes at the bottom of the retaining frame are one close to the positioning block connected to the positioning baffle, and the other close to the positioning block not connected to the positioning baffle, and the pin is set on the rivet hole close to the positioning block not connected to the positioning baffle.

[0023] The beneficial effects of the present invention are: the tooling of the present invention can effectively locate the position of the retaining frame to facilitate laser drilling operations, reduce the difficulty of debugging, have a simple structure, and be easy to operate. A set of tooling can process products of various specifications, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the main view of the positioning block;

[0025] Figure 2 It is the top view of the positioning block;

[0026] Figure 3 Schematic diagram of the positioning baffle;

[0027] Figure 4 This is a schematic diagram of an M5 hexagon socket bolt;

[0028] Figure 5 for Figure 4 Side view of

[0029] Figure 6 This is a schematic diagram of an M5 flat head hexagon bolt;

[0030] Figure 7 for Figure 6 Side view of

[0031] Figure 8 It is a schematic diagram of the pin;

[0032] Figure 9 for Figure 8 Side view of

[0033] Figure 10 Assembly drawing of the positioning tool for typing the cage;

[0034] Figure 11 for Figure 10 A-direction view;

[0035] In the figure: 1. Positioning block, 11. Flat connecting plate, 12. Keyway, 13. Threaded hole, 2. Cage, 21. Rivet hole, 3. Positioning baffle, 31. Long waist hole, 5. Positioning bolt, 6. Pin, A. Marking line, B. Typing position. DETAILED DESCRIPTION

[0036] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] See attached Figure 1 The positioning fixture for retainer typing includes two oppositely positioned, sloped positioning blocks 1. The retainer 2 is placed on the slopes of the two positioning blocks 1, with the retainer's outer wall tangent to the slopes of the two positioning blocks. The side surfaces of the positioning blocks are connected to positioning baffles 3, which contact the retainer end faces and limit the retainer axially. The retainer end faces are provided with a plurality of rivet holes 21. Pins 6 are set in the rivet holes near the ends of the positioning baffles. One end of the pin 6 is inserted into the rivet hole 21, and the other end of the pin 6 is exposed outside the retainer end face. The portion of the pin exposed from the retainer end face rests on the end of the positioning baffle 3, limiting the retainer circumferentially.

[0038] Furthermore, the slope of the positioning block 1 is 30°, and the slope angles of the two positioning blocks are set relative to each other. When the retaining frame 2 is placed on the slope surfaces of the two positioning blocks, there is a gap between the bottom surface of the retaining frame and the typewriter workbench.

[0039] Furthermore, the positioning block 1 is provided with a planar connecting plate 11 , on which a key slot 12 for connecting to the typewriter workbench is provided. The positioning block 1 is fixed to the typewriter workbench by connecting bolts passing through the key slot 12 .

[0040] Furthermore, two groups of key slots 12 are provided on each planar connecting plate 11 , and two ends of each group of key slots are respectively connected to a connecting bolt, and the connecting bolt is an M5 hexagon socket bolt.

[0041] Furthermore, a threaded hole 13 is provided on one of the positioning blocks 1, and a long waist hole 31 is provided on the positioning baffle 3. The positioning bolt 5 connects the positioning block 1 and the positioning baffle 3 through the threaded hole 13 and the long waist hole 31, and locks the relative position of the positioning block 1 and the positioning baffle 3.

[0042] Furthermore, the positioning bolt 5 is an M5 flat head hexagonal bolt.

[0043] See also Figure 11 , A is the marking line position, B is the typing position for printing the serial number. When the laser marking machine types, the marking line position is used as the reference, and the typing position is located on both sides of the marking line position and aligned with the marking line position.

[0044] A positioning method for retainer typing, comprising the following steps:

[0045] 1. Tooling adjustment

[0046] (1) Use four Figure 4 and Figure 5The M5 hexagon socket bolts shown connect the two Figure 1 The 30° positioning block shown is fixed to the workbench of the typewriter through the workpiece, and the distance between the two positioning blocks is adjusted to ensure that the lower end of the workpiece does not touch the workbench of the laser typewriter.

[0047] (2) Place the test cage vertically between the two positioning blocks 1, with the outer surface of the cage tangent to the slope of the positioning blocks;

[0048] (3) Adjust the position of the test cage so that the end face of the test cage is flush with the side surface of the positioning block and the typing position is aligned with the marking line;

[0049] (4) Insert the test pin into the rivet hole at the bottom of the test holder and adjust the position of the positioning baffle so that the end face of the positioning baffle contacts the test pin;

[0050] (5) Figure 2 The positioning baffle shown is through Figure 6 and Figure 7 The M5 flat-head hexagonal bolt shown is installed on the side surface of the 30° positioning block with the M5 threaded hole.

[0051] 2. Adjustment of the typing holder

[0052] (6) Place the retainer workpiece to be typed on the marking line and put it upright between the two 30° positioning blocks. Insert a pin that matches the rivet hole of the workpiece into the rivet hole on the positioning block without a threaded hole between the two rivet holes at the bottom of the workpiece, and expose it 5-10mm on the side close to the baffle.

[0053] (7) Place the workpiece of the retainer to be typed against the positioning baffle, limit the retainer in the axial direction, adjust the position of the pin on the end face of the retainer so that the pin is exposed from the end face of the retainer and contacts the positioning baffle, and limit the retainer in the circumferential direction.

[0054] (8) Adjust the laser marking machine to type.

[0055] Based on the above technical solution, for products of the same specification, the number of rivet holes of this product is certain, such as Figure 10 In the cage shown, when the mating line is directly above, the rivet hole closest to the baffle is the rivet hole for positioning. After adjusting the positioning baffle to align the typing position with the mating line, fix the positioning baffle. The position of the positioning baffle can then be used to locate the position of the cage workpiece to be typed.

[0056] The above examples are merely preferred embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and many variations are possible. All variations that can be directly derived or imagined by a person skilled in the art from the disclosure of the present invention should be considered to be within the scope of protection of the present invention.

Claims

1. A positioning method for retaining frame typing, characterized in that, The invention comprises a positioning fixture for typing a retainer, the fixture comprising two positioning blocks with slopes arranged opposite to each other, the retainer being placed on the slopes of the two positioning blocks, the outer walls of the retainer being tangent to the slopes of the two positioning blocks, the side surfaces of the positioning blocks being connected to positioning baffles, the end faces of the retainer being in contact with the positioning baffles, thereby limiting the retainer in axial direction; the end faces of the retainer are provided with a plurality of rivet holes, a pin being provided in the rivet hole near the end of the positioning baffle, one end of the pin being inserted into the rivet hole, the other end of the pin being exposed outside the end face of the retainer, the portion of the pin exposed outside the end face of the retainer being against the end of the positioning baffle, thereby limiting the retainer in circumferential direction; The positioning method comprises the following steps: Step 1: Place two sloping positioning blocks opposite each other and fix them on the typewriter workbench. Adjust the distance between the two positioning blocks to ensure that when the retainer is placed on the positioning blocks, the bottom of the retainer does not touch the typewriter workbench. Step 2: Adjust the position of the positioning baffle by using the test holder, and fix the positioning baffle to the side surface of one of the positioning blocks; Step a: Place the test cage vertically between two positioning blocks; Step b, adjust the position of the test cage so that the end surface of the test cage is flush with the side surface of the positioning block and the typing position is aligned with the marking line; Step c, inserting a test pin into the rivet hole at the bottom of the test holder, and adjusting the position of the positioning baffle so that the end surface of the positioning baffle contacts the test pin; Step d, fixing the positioning baffle to the side surface of the positioning block away from the test pin; Step 3: Match the cage seat and cage cover to be typed along the marking line, place the matched cage between the two positioning blocks, with the cage in contact with the slope of the positioning blocks, insert one end of the pin into the rivet hole on the end face of the cage near the end of the positioning baffle, and leave the other end of the pin exposed outside the cage; Step 4: Place the end face of the cage against the positioning baffle to limit the cage axially, adjust the position of the pin on the end face of the cage so that the pin is exposed on the end face of the cage and contacts the positioning baffle to limit the cage circumferentially; Step 5: Adjust the laser typewriter to type; For products of the same specification, the number of rivet holes is fixed. In the cage, when the matching line is directly above, the rivet hole close to the baffle is the rivet hole for positioning. After adjusting the positioning baffle so that the typing position is aligned with the matching line, fix the positioning baffle and use the position of the positioning baffle to locate the position of the cage workpiece to be typed. When the laser marking machine is typing, the marking line position is used as the reference, and the typing position is located on both sides of the marking line position and aligned with the marking line position.

2. The positioning method for holding frame typing according to claim 1, characterized in that: For step three, the two adjacent rivet holes at the bottom of the retaining frame are one close to the positioning block connected to the positioning baffle, and the other close to the positioning block not connected to the positioning baffle. The pin is set on the rivet hole close to the positioning block not connected to the positioning baffle.

3. The positioning method for holding frame typing according to claim 1, characterized in that: The slope of the positioning block is 30 degrees, and the slope angles of the two positioning blocks are arranged opposite to each other. When the retaining frame is placed on the slope surfaces of the two positioning blocks, there is a gap between the bottom surface of the retaining frame and the typewriter workbench.

4. The positioning method for holding frame typing according to claim 1, characterized in that: The positioning block is provided with a plane connecting plate, the plane connecting plate is provided with a key slot for connecting with the typewriter workbench, and the positioning block is fixed to the typewriter workbench through a connecting bolt passing through the key slot.

5. The positioning method for holding frame typing according to claim 4, characterized in that: Two sets of key slots are provided on each plane connecting plate, and two ends of each set of key slots are respectively connected to a connecting bolt, and the connecting bolt is an M5 hexagon socket bolt.

6. The positioning method for holding frame typing according to claim 1, characterized in that: One of the positioning blocks is provided with a threaded hole, and the positioning baffle is provided with a long waist hole. The positioning bolt connects the positioning block and the positioning baffle through the threaded hole and the long waist hole, and locks the relative position of the positioning block and the positioning baffle.

7. The positioning method for holding frame typing according to claim 6, characterized in that: The positioning bolts are M5 flat head hexagonal bolts.

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