Die ejector pin length precision grinding clamp

Abstract

The utility model discloses a mold ejector pin length precision grinding clamp, and relates to the technical field of precision grinding clamps. The clamping device comprises an installation bottom plate and a clamping assembly, the surface of one end of the installation bottom plate is fixedly connected with a threaded block, the surface of the other end of the installation bottom plate is fixedly connected with a fixing block, and matched sliding rods are fixedly connected between the two sides of one surface of the threaded block and the fixing block. Through the arrangement of the threaded block, the fixing block, the matched sliding rod, the sliding groove and the clamping assembly, the ejector pins needing to be machined can be clamped in the clamping groove, the threaded rod is rotated to push the one-way sliding clamping block to move, under the cooperation of the two-way clamping block, the matched spring and the one-way fixing clamping block, multiple sets of ejector pins are fixed, then the linkage block is rotated, and the ejector pins are clamped. The clamping grooves and the clamping blocks are buckled, the fixing stability of the ejector pin is further enhanced, the situation that the spring shakes in the machining process and machining of the ejector pin is affected is avoided, positioning is more reliable, machining is safer, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision grinding fixtures, in particular to a precision grinding fixture for the length of a mold ejector pin. Background Art

[0002] The existing precision grinding of ejector pin length is generally carried out on a surface grinder. The clamping method is that the ejector pin is adsorbed on a magnetic suction cup, and a clamp is adsorbed on one side and the opposite side of the tangential rotation direction of the grinding wheel, or only one clamp is adsorbed on the tangential rotation direction of the grinding wheel. Only 1-2 ejectors can be processed each time. Due to the small diameter of the ejector pin and the limited adsorption force of the magnetic suction cup, the ejector pin is easy to rotate or fly away during the grinding process, which not only has low processing efficiency, but also low processing safety and a high scrap rate of parts. Utility Model Content

[0003] The utility model aims to provide a precision grinding fixture for the length of a mold ejector pin, so as to solve the problems that the ejector pin has a small diameter, the adsorption force of a magnetic chuck is limited, the ejector pin is easily rotated or knocked off during grinding, which not only leads to low processing efficiency, but also low processing safety and a high rate of parts scrapping.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses a precision grinding fixture for the length of a mold ejector pin, comprising a mounting base plate and a clamping assembly, wherein the surface of one end of the mounting base plate is fixedly connected with a threaded block, and the surface of the other end is fixedly connected with a fixed block, and matching sliding rods are fixedly connected between the two sides of one surface of the threaded block and the fixed block, and the clamping assembly comprises a one-way sliding clamping block, a two-way clamping block and a threaded rod, the threaded rod is arranged in the threaded block and matched with the thread thereof, the one-way sliding clamping block is rotatably connected with one end of the threaded rod, the one-way sliding clamping block is arranged on the peripheral side of the matching sliding rod and slidably matched with the matching sliding rod, and a side surface of the fixed block is fixedly connected with a one-way fixed clamping block.

[0006] The two-way clamp blocks are provided in multiple groups, and the multiple groups of two-way clamp blocks are all provided between the one-way sliding clamp blocks and the one-way fixed clamp blocks. The two-way clamp blocks are provided on the peripheral side of the matching slide rod and slideably cooperate with it. Matching springs are installed between the one-way sliding clamp block and the two-way clamp blocks, between the one-way fixed clamp block and the two-way clamp blocks, and between the two-way clamp blocks. The matching springs are provided on the peripheral side of the matching slide rod and slideably cooperate with it.

[0007] The one-way sliding clamp block, one side of the one-way fixed clamp block and both side surfaces of the bidirectional clamp block are all provided with clamp grooves, and the clamp grooves correspond to each other in pairs, and the clamp grooves are "V" shaped.

[0008] One side of the end face of the one-way fixed clamp block and the two-way clamp block is fixedly connected with a clamping block, the other side of the end face of the two-way clamp block and the end face of the one-way sliding clamp block are fixedly connected with a connecting rod, one end of the connecting rod is rotatably connected with a linkage block, and one side face of the linkage block is provided with multiple groups of slots, and the slots are snap-fitted with the clamping blocks.

[0009] A sliding groove is provided on the bottom surface of the installation base plate.

[0010] One end of the threaded rod away from the one-way sliding clamping block is fixedly connected with a handle, and the handle is arranged on the outer side of the threaded block.

[0011] The utility model has the following beneficial effects:

[0012] The utility model can clamp the ejector pins to be processed in the clamping groove by arranging the threaded block, the fixed block, the matching sliding rod, the sliding groove and the clamping assembly, and rotate the threaded rod to push the one-way sliding clamping block to move, and fix multiple groups of ejector pins with the cooperation of the two-way clamping block, the matching spring and the one-way fixed clamping block, and then rotate the linkage block to make the clamping groove on it buckle with the clamping block, so as to further strengthen the stability of the ejector pin fixation, avoid the spring shaking during processing, and affect the processing of the ejector pin, so that the positioning is more reliable, the processing is safer, and the processing efficiency is improved.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional assembly structure of the utility model;

[0016] Figure 2 for Figure 1 A magnified image of area A;

[0017] Figure 3 It is a bottom view of the assembly structure of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Install the base plate; 101. Threaded block; 102. Fixed block; 103. Matching slide rod; 104. Slide groove; 2. Clamping assembly; 21. One-way sliding clamp block; 201. One-way fixed clamp block; 202. Two-way clamp block; 203. Clamp groove; 204. Threaded rod; 205. Handle; 206. Matching spring; 207. Clamp block; 208. Connecting rod; 209. Linkage block; 210. Clamp groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-Figure 3 As shown, the utility model is a precision grinding fixture for the length of a mold ejector pin, comprising a mounting base plate 1 and a clamping assembly 2, wherein a threaded block 101 is fixedly connected to the surface of one end of the mounting base plate 1, and a fixed block 102 is fixedly connected to the surface of the other end, and a matching slide bar 103 is fixedly connected between the two sides of one surface of the threaded block 101 and the fixed block 102, and the clamping assembly 2 comprises a unidirectional sliding clamp block 21, a bidirectional clamp block 202 and a threaded rod 204, and the threaded rod 204 is arranged in the threaded block 101 and threadedly matched therewith, the unidirectional sliding clamp block 21 is rotatably connected to one end of the threaded rod 204, the unidirectional sliding clamp block 21 is arranged on the peripheral side of the matching slide bar 103 and slidably matched therewith, and a side surface of the fixed block 102 is fixedly connected to the unidirectional fixed clamp block 201.

[0024] There are multiple groups of two-way clamps 202, and the multiple groups of two-way clamps 202 are all arranged between the one-way sliding clamp 21 and the one-way fixed clamp 201. The two-way clamp 202 is arranged on the peripheral side of the matching slide bar 103 and slidably cooperates with it. Matching springs 206 are installed between the one-way sliding clamp 21 and the two-way clamp 202, between the one-way fixed clamp 201 and the two-way clamp 202, and between the two-way clamps 202. The matching springs 206 are arranged on the peripheral side of the matching slide bar 103 and slidably cooperate with it.

[0025] The one-way sliding clamping block 21 and one side of the one-way fixed clamping block 201 and both sides of the bidirectional clamping block 202 are all provided with clamping grooves 203 , and the clamping grooves 203 correspond to each other in pairs, and the clamping grooves 203 are “V” shaped.

[0026] One side of the end face of the one-way fixed clamp block 201 and the two-way clamp block 202 are fixedly connected with a clamping block 207, the other side of the end face of the two-way clamp block 202 and the end face of the one-way sliding clamp block 21 are fixedly connected with a connecting rod 208, one end of the connecting rod 208 is rotatably connected to a linkage block 209, and a side face of the linkage block 209 is provided with multiple groups of clamping grooves 210, which are snap-fitted with the clamping block 207.

[0027] A sliding groove 104 is formed on the bottom surface of the installation base plate 1 .

[0028] One end of the threaded rod 204 away from the one-way sliding clamping block 21 is fixedly connected with a handle 205 , and the handle 205 is arranged on the outer side of the threaded block 101 .

[0029] It should be noted that, in actual use, the ejector pin to be processed is clamped in the clamping groove 203, and then the threaded rod 204 is rotated to push the one-way sliding clamping block 21 to move along the matching slide rod 103. With the cooperation of the two-way clamping block 202, the matching spring 206 and the one-way fixed clamping block 201, multiple groups of ejectors are fixed along the slide groove 104, and then the linkage block 209 is rotated to make the slot 210 on it engage with the clamping block 207, so as to further strengthen the stability of the ejector pin fixation, avoid the shaking of the matching spring 206 during processing, and affect the processing of the ejector pin, so as to make the positioning more reliable, the processing safer, and improve the processing efficiency.

[0030] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and describes these embodiments in detail in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A mold ejector pin length precision grinding fixture, comprising a mounting base plate (1) and a clamping assembly (2), characterized in that: A threaded block (101) is fixedly connected to the surface of one end of the mounting base plate (1), and a fixed block (102) is fixedly connected to the surface of the other end. A matching slide bar (103) is fixedly connected between the two sides of one surface of the threaded block (101) and the fixed block (102). The clamping assembly (2) comprises a one-way sliding clamp block (21), a two-way clamp block (202) and a threaded rod (204). The threaded rod (204) is arranged in the threaded block (101) and is threadably matched with the threaded rod. The one-way sliding clamp block (21) is rotatably connected to one end of the threaded rod (204). The one-way sliding clamp block (21) is arranged on the peripheral side of the matching slide bar (103) and is slidably matched with the matching slide bar. A side surface of the fixed block (102) is fixedly connected to the one-way fixed clamp block (201).

2. The mold ejector pin length precision grinding fixture according to claim 1, characterized in that: The two-way clamp block (202) is provided in multiple groups, and the multiple groups of two-way clamp blocks (202) are all arranged between the one-way sliding clamp block (21) and the one-way fixed clamp block (201); the two-way clamp block (202) is arranged on the peripheral side of the matching slide bar (103) and is slidably matched with it; matching springs (206) are installed between the one-way sliding clamp block (21) and the two-way clamp block (202), between the one-way fixed clamp block (201) and the two-way clamp block (202), and between the two-way clamp blocks (202); the matching springs (206) are arranged on the peripheral side of the matching slide bar (103) and are slidably matched with it.

3. The mold ejector pin length precision grinding fixture according to claim 2, characterized in that: The one-way sliding clamping block (21), one side of the one-way fixed clamping block (201) and both sides of the bidirectional clamping block (202) are all provided with clamping grooves (203), and the clamping grooves (203) correspond to each other in pairs, and the clamping grooves (203) are "V" shaped.

4. The mold ejector pin length precision grinding fixture according to claim 3, characterized in that: One side of the end surface of the one-way fixed clamp block (201) and the two-way clamp block (202) is fixedly connected to a clamp block (207); the other side of the end surface of the two-way clamp block (202) and the end surface of the one-way sliding clamp block (21) are fixedly connected to a connecting rod (208); one end of the connecting rod (208) is rotatably connected to a linkage block (209); a side surface of the linkage block (209) is provided with a plurality of groups of clamping grooves (210); the clamping grooves (210) are snap-fitted with the clamp block (207).

5. The mold ejector pin length precision grinding fixture according to claim 4, characterized in that: A sliding groove (104) is provided on the bottom surface of the installation base plate (1).

6. The mold ejector pin length precision grinding fixture according to claim 5, characterized in that: One end of the threaded rod (204) away from the one-way sliding clamping block (21) is fixedly connected to a handle (205), and the handle (205) is arranged on the outside of the threaded block (101).

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