Tool clamp for oil cylinder connector

Abstract

The utility model provides a tool clamp for an oil cylinder connector, and belongs to the technical field of machinery. The problem that the machining precision is low due to unstable clamping is solved. The positioning device comprises a blocky positioning seat, the positioning seat is provided with a groove penetrating through the top face and the front end face of the positioning seat, the groove bottom wall of the groove is fixedly connected with two first positioning blocks, the two first positioning blocks are oppositely arranged in the left-right direction, the front ends of the two first positioning blocks are provided with abutting faces respectively, and the positioning seat is provided with two guide rods in a penetrating mode in the vertical direction; the groove is located between the two guide rods in the left-right direction, the upper ends of the two guide rods are fixedly connected with pressing blocks, the projections of the pressing blocks on the groove bottom wall of the groove are in front of the first positioning block, the two guide rods can slide relative to the positioning base so that the two pressing blocks can be close to or away from the groove bottom wall of the groove, and the two guide rods can be positioned after sliding. The clamp has the advantages of stable clamping and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a tooling fixture for a cylinder joint. Background Art

[0002] like Figure 6 The figure shows a cylinder joint 6, which has a block portion 6a and two columnar portions 6b. The two columnar portions 6b protrude from both ends of the block portion 6a. The two columnar portions 6b have inner holes, and the inner holes of the two columnar portions 6b are connected to each other on the inner side of the block portion 6a. A plurality of annular grooves for matching are arranged on the inner hole walls of the two columnar portions 6b. The annular grooves are processed separately after obtaining the roughcast of the cylinder joint 6.

[0003] In order to bore and groove the inner hole of the columnar portion 6a, a spring chuck is generally used to clamp the inner hole of the columnar portion 6a of the cylinder joint 6, that is, one of the columnar portions 6a of the cylinder joint 6 is clamped by the spring chuck, and then the inner hole of the other columnar portion 6a of the cylinder joint 6 is processed. Figure 6 It can be seen that the length of the columnar portion 6a is relatively short, and the block portion 6b, which accounts for a larger proportion of the entire cylinder joint 6, is not directly clamped and fixed. Therefore, in practice, the use of a spring chuck cannot stably clamp the cylinder joint 6, resulting in the inability to ensure processing accuracy. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the prior art and proposes a fixture for a cylinder joint, which solves the problem of low machining accuracy caused by unstable clamping.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A tooling fixture for a cylinder joint comprises a block-shaped positioning seat, characterized in that the positioning seat has a groove running through its top surface and front end surface, the bottom wall of the groove is fixedly connected to two positioning blocks, the two positioning blocks are arranged opposite to each other along the left and right sides, the front ends of the two positioning blocks respectively have abutment surfaces, the positioning seat is penetrated by two guide rods in the vertical direction, the groove is located between the two guide rods along the left and right directions, the upper ends of the two guide rods are fixedly connected to a pressure block, the projection of the pressure block on the bottom wall of the groove is in front of the positioning block, the two guide rods can slide relative to the positioning seat to make the two pressure blocks approach or move away from the bottom wall of the groove, and the two guide rods can be positioned after sliding.

[0007] Before the cylinder joint is clamped and fixed, the two guide rods are in a position where the pressure blocks connected to them are far away from the bottom wall of the groove. When the cylinder joint needs to be clamped and fixed, the cylinder joint is placed in the groove, and the block portion of the cylinder joint abuts against the bottom wall of the groove, so that one of the columnar portions of the cylinder joint abuts between the two positioning blocks in the left and right directions. At the same time, the transition position between the columnar portion and the block portion of the cylinder joint abuts against the abutting surface of the front end of the two positioning blocks, thereby positioning the cylinder joint. Finally, the two guide rods are controlled to move downward until the two pressure blocks are pressed on the block portion of the cylinder joint, thereby completing the clamping and fixing of the cylinder joint. After the clamping and fixing is completed, the other columnar portion of the cylinder joint will extend out of the front end of the positioning seat.

[0008] The fixture uses two positioning blocks to position the cylinder joint in the left-right direction and the front-back direction, and after positioning, the pressure block is pressed on the block portion of the cylinder joint, so that the cylinder joint can be firmly clamped and fixed to ensure processing accuracy.

[0009] In the above-mentioned tooling fixture for the cylinder joint, the lower ends of the two guide rods extend out of the positioning seat, and a synchronization plate is fixedly connected between the lower ends of the two guide rods. The synchronization plate is threadedly connected with a rod-shaped adjustment member in the vertical direction. The adjustment member is fixedly connected to the positioning seat in the vertical direction and can rotate relative to the positioning seat.

[0010] When the adjusting piece is rotated, the synchronous plate can be driven to move up and down through the thread, thereby realizing the synchronous action of the two guide rods and improving the reliability of clamping.

[0011] In the above-mentioned tooling fixture for the cylinder joint, the bottom of the positioning seat has a strip-shaped limit groove arranged along the front-to-back direction, the limit groove is a T-shaped groove, and the portion with a smaller width of the limit groove is located below the portion with a larger width of the limit groove. The adjusting member has a rod body, a limit head fixedly connected to the upper end of the rod body, and an operating head fixedly connected to the lower end of the rod body. The outer diameters of the limit head and the operating head are both larger than the rod body, and the limit head is located in the portion with a larger width of the limit groove.

[0012] The limit head of the adjusting member is located in the part with larger width of the limit groove, so that the adjusting member is fixedly connected to the positioning seat in the vertical direction and can rotate relative to the positioning seat, thereby ensuring that the staff can drive the synchronous plate to move by operating the adjusting member, and synchronously drive the two guide rods to move by the synchronous plate.

[0013] In the above-mentioned tooling fixture for the cylinder joint, the bottom wall of the groove is also fixedly connected with two positioning blocks 2, which are located in front of the positioning block 1, and the two positioning blocks 2 are arranged opposite to each other left and right, and the distance between the right side surface of the positioning block 2 on the left and the left side surface of the positioning block 2 on the right is greater than the distance between the right side surface of the positioning block 1 on the left and the left side surface of the positioning block 1 on the right.

[0014] One of the columnar parts of the cylinder joint abuts between the two positioning blocks 1 along the left-right direction, and at the same time, the transition position between the columnar part and the block part of the cylinder joint abuts against the abutment surface at the front end of the two positioning blocks 1. On this basis, two positioning blocks 2 are set so that the block part of the cylinder joint abuts between the two positioning blocks 2 along the left-right direction, which can further improve the positioning effect of the cylinder joint.

[0015] In the above-mentioned fixture for the cylinder joint, the abutment surface is an outward convex arc surface, the abutment surface of the positioning block 1 on the left has a smooth transition with its right side, and the abutment surface of the positioning block 1 on the right has a smooth transition with its left side.

[0016] The transition position between the columnar portion and the block portion of the cylinder joint is a concave arc, which can make the transition position between the columnar portion and the block portion of the cylinder joint more closely abut against the two abutting surfaces, further improving the positioning effect.

[0017] In the above-mentioned tooling fixture for the cylinder joint, the positioning seat includes a U-shaped seat body and a square block body. The block body is detachably connected to the seat body. The left inner wall of the seat body, the right inner wall of the seat body and the top surface of the block body constitute the above-mentioned groove. The top surface of the seat body is higher than the top surface of the block body. Positioning block one and positioning block two are both fixedly connected to the top surface of the block body.

[0018] Through the above arrangement, the staff can realize the clamping and fixing of the oil cylinder joints of different sizes by replacing the block body fixedly connected with the two positioning blocks 1 with different intervals and the two positioning blocks 2 with different intervals.

[0019] In the above-mentioned fixture for cylinder joints, the seat body and the block body are fixedly connected by a plurality of fastening screws, the rods of some fastening screws pass through the seat body from the left side and are threadedly connected to the block body, and the rods of the remaining fastening screws pass through the seat body from the right side and are threadedly connected to the block body.

[0020] In the above-mentioned tooling fixture for cylinder joints, a straight giveway groove 1 is arranged on the top of the block along the front-to-back direction, the giveway groove 1 is located between the two positioning blocks 1, the groove width of the giveway groove 1 is smaller than the spacing between the two positioning blocks 1, a straight giveway groove 1 is arranged on the bottom of the block along the front-to-back direction, the giveway groove 2 is located directly below the giveway groove 1 and the groove widths of the two are the same, and the block between the giveway groove 1 and the giveway groove 2 is strip-shaped.

[0021] By setting the first and second clearance grooves, the block between the first and second clearance grooves is in a strip shape, which is convenient for the staff to directly pull the block out of the seat body by clamping their fingers here, thereby improving the convenience of replacing the block. Moreover, the width of the first clearance groove is smaller than the spacing between the two positioning blocks, which will not affect the stable placement of the oil cylinder joint.

[0022] Compared with the prior art, the fixture for the oil cylinder joint has the following advantages:

[0023] 1. By fixing the positioning block 1 and the positioning block 2 which are oppositely arranged along the left and right sides of the bottom wall of the groove of the positioning seat, and setting abutment surface at the front end of the positioning block 1, the cylinder joint can be positioned along the left and right directions and along the front and rear directions on the positioning seat, and after positioning, the pressure block is pressed on the block portion of the cylinder joint, so that the cylinder joint can be firmly clamped and fixed to ensure the processing accuracy.

[0024] 2. The positioning seat is configured to include a seat body and a block body detachably connected to the seat body, and positioning block 1 and positioning block 2 are fixedly connected to the top surface of the block body, so that the staff can realize the clamping and fixing of cylinder joints of different sizes by replacing the block body fixedly connected with two positioning blocks 1 with different spacings and two positioning blocks 2 with different spacings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of a fixture for a cylinder joint.

[0026] Figure 2 It is a longitudinal sectional view of the fixture used for the oil cylinder joint.

[0027] Figure 3 yes Figure 2 Sectional view along AA direction.

[0028] Figure 4 It is a three-dimensional schematic diagram of the tooling fixture for the oil cylinder joint after the oil cylinder joint is clamped and fixed.

[0029] Figure 5 This is a cross-sectional view of the tooling fixture for the cylinder joint after the cylinder joint is clamped and fixed (the cross-sectional view direction is the same as that of the tooling fixture for the cylinder joint). Figure 3 same).

[0030] Figure 6 It is a three-dimensional schematic diagram of the cylinder joint.

[0031] In the figure, 1, positioning seat; 1a, groove; 1b, seat body; 1b1, limit groove; 1c, block body; 1c1, make way groove one; 1c2, make way groove two; 2, positioning block one; 2a, abutment surface; 3, positioning block two; 4, guide rod; 4a, pressure block; 5, synchronization plate; 6, adjustment member; 6a, rod body; 6b, limit head; 6c, operating head; 7, connecting plate; 8, counterweight block; 9, cylinder joint; 9a, block part; 9b, columnar part. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, a fixture for a cylinder joint includes a block-shaped positioning seat 1, a connecting plate 7 is fixedly connected to the rear end of the positioning seat 1, and the connecting plate 7 is used to realize the installation and fixation of the positioning seat 1 on the spindle unit of the machine tool. A counterweight block 8 is also fixedly connected to the front side of the connecting plate 7. The positioning seat 1 has a groove 1a that runs through its top surface and front end surface, and two positioning blocks 2 are fixedly connected to the bottom wall of the groove 1a. The two positioning blocks 2 are arranged opposite to each other along the left and right sides, and the front ends of the two positioning blocks 2 respectively have abutment surfaces 2a, which are convex arc surfaces. The abutment surface 2a of the positioning block 2 on the left is smoothly transitioned to its right side surface, and the abutment surface 2a of the positioning block 2 on the right is smoothly transitioned to its left side surface. The bottom wall of the groove 1a is also fixedly connected to two positioning blocks 2 3, which are located in front of the positioning block 1 2. The two positioning blocks 2 3 are arranged opposite to each other left and right, and the distance between the right side surface of the positioning block 2 3 on the left and the left side surface of the positioning block 2 3 on the right is greater than the distance between the right side surface of the positioning block 2 on the left and the left side surface of the positioning block 2 on the right.

[0034] like Figure 1 and Figure 2As shown, the positioning seat 1 is provided with two guide rods 4 in the vertical direction, the groove 1a is located between the two guide rods 4 in the left-right direction, the upper ends of the two guide rods 4 are fixedly connected with a pressure block 4a, the pressure block 4a and the guide rod 4 are an integrated structure, the pressure block 4a is located above the positioning block 3, the two guide rods 4 can slide relative to the positioning seat 1 so that the two pressure blocks 4a are close to or away from the groove bottom wall of the groove 1a, and the two guide rods 4 can be positioned after sliding. The lower ends of the two guide rods 4 extend out of the positioning seat 1, and a synchronous plate 5 is fixedly connected between the lower ends of the two guide rods 4. The synchronous plate 5 is threadedly connected with a rod-shaped adjusting member 6 in the vertical direction, and the adjusting member 6 is fixedly connected to the positioning seat 1 in the vertical direction and the adjusting member 6 can rotate relative to the positioning seat 1. The bottom of the positioning seat 1 has a strip-shaped limit groove 1b1 arranged along the front-to-back direction, and the limit groove 1b1 is a T-shaped groove. The smaller width of the limit groove 1b1 is located below the larger width of the limit groove 1b1. The adjustment member 6 has a rod body 6a, a limit head 6b fixedly connected to the upper end of the rod body 6a, and an operating head 6c fixedly connected to the lower end of the rod body 6a. The outer diameters of the limit head 6b and the operating head 6c are both larger than the rod body 6a, and the limit head 6b is located in the larger width of the limit groove 1b1.

[0035] Before the cylinder joint 9 is clamped and fixed, the two guide rods 4 are in a position where the pressure blocks 4a connected to them are far away from the bottom wall of the groove 1a. When the cylinder joint 9 needs to be clamped and fixed, the cylinder joint 9 is placed into the groove 1a, and the block portion 9a of the cylinder joint 9 abuts against the bottom wall of the groove 1a, so that one of the columnar portions 9b of the cylinder joint 9 abuts between the two positioning blocks 2 along the left and right directions, and the transition position between the columnar portion 9b and the block portion 9a abuts against the abutment surface 2a at the front end of the two positioning blocks 2, and at the same time, the block portion 9a abuts between the two positioning blocks 3 along the left and right directions, thereby positioning the cylinder joint 9. Finally, the adjusting member 6 is rotated to drive the synchronous plate 5 to move downward through the thread, thereby driving the two guide rods 4 to move downward until the two pressure blocks 4a are pressed on the block portion 9a of the cylinder joint 9, thereby completing the clamping and fixing of the cylinder joint 9. This state is as shown in FIG. Figure 4 and Figure 5 As shown. After the clamping and fixing is completed, the other columnar part 9b of the cylinder joint 9 will extend out of the front end of the positioning seat 1 for boring and grooving. After the processing is completed, the adjusting member 6 is rotated in the opposite direction, and the synchronous plate 5 is driven to move upward through the thread, thereby driving the two guide rods 4 to move upward so that the two pressure blocks 4a loosen the cylinder joint 9.

[0036] In this embodiment, if Figure 1 and Figure 2As shown, the positioning seat 1 includes a U-shaped seat body 1b and a square block body 1c. The block body 1c is detachably connected to the seat body 1b. The left inner wall of the seat body 1b, the right inner wall of the seat body 1b and the top surface of the block body 1c constitute the above-mentioned groove 1a. The limiting groove 1b1 is located at the bottom of the seat body 1b. The top surface of the seat body 1b is higher than the top surface of the block body 1c. The positioning block 1 2 and the positioning block 2 3 are fixedly connected to the top surface of the block body 1c. The block body 1c is detachably connected to the seat body 1b, so that the staff can realize the clamping and fixing of the cylinder joints 9 of different sizes by replacing the block body 1c fixedly connected with two positioning blocks 1 2 with different spacings and two positioning blocks 2 3 with different spacings, so that there is no need to remove the seat body 1b from the spindle unit of the machine tool. The seat body 1b is provided with two guide holes in the vertical direction, and the guide rods 4 are respectively located in the two guide holes. The seat 1b and the block 1c are fixedly connected by a number of fastening screws, the rods of some fastening screws pass through the seat 1b from the left side and are threadedly connected to the block 1c, and the rods of the remaining fastening screws pass through the seat 1b from the right side and are threadedly connected to the block 1c. A straight clearance groove 1c1 is arranged on the top of the block 1c along the front-to-back direction, the clearance groove 1c1 is located between the two positioning blocks 12, and the groove width of the clearance groove 1c1 is smaller than the spacing between the two positioning blocks 12. A straight clearance groove 1c1 is arranged on the bottom of the block 1c along the front-to-back direction, the clearance groove 2 1c2 is located directly below the clearance groove 1c1 and the groove widths of the two are the same, and the block 1c between the clearance groove 1c1 and the clearance groove 2 1c2 is in a strip shape. By setting the clearance groove 1c1 and the clearance groove 2 1c2, the block 1c between the clearance groove 1c1 and the clearance groove 2 1c2 is in a strip shape, and such a shape is convenient for the staff to directly extract the block 1c from the seat body 1b by clamping the block 1c there with their fingers, thereby improving the convenience of replacing the block 1c. Moreover, the width of the clearance groove 1c1 is smaller than the spacing between the two positioning blocks 12, so that the stable placement of the oil cylinder joint 9 will not be affected.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A fixture for a cylinder joint, comprising a block-shaped positioning seat (1), characterized in that: The positioning seat (1) has a groove (1a) penetrating the top surface and the front end surface thereof. The groove bottom wall of the groove (1a) is fixedly connected with two positioning blocks (2). The two positioning blocks (2) are arranged opposite to each other in the left and right directions. The front ends of the two positioning blocks (2) respectively have abutment surfaces (2a). The positioning seat (1) is penetrated with two guide rods (4) in the vertical direction. The groove (1a) is located between the two guide rods (4) in the left and right directions. The upper ends of the two guide rods (4) are fixedly connected with pressure blocks (4a). The projection of the pressure blocks (4a) on the groove bottom wall of the groove (1a) is in front of the positioning block (2). The two guide rods (4) can slide relative to the positioning seat (1) so that the two pressure blocks (4a) are close to or away from the groove bottom wall of the groove (1a), and the two guide rods (4) can be positioned after sliding.

2. The fixture for the cylinder joint according to claim 1, characterized in that: The lower ends of the two guide rods (4) extend out of the positioning seat (1), a synchronous plate (5) is fixedly connected between the lower ends of the two guide rods (4), and the synchronous plate (5) is threadedly connected with a rod-shaped adjusting member (6) in a vertical direction. The adjusting member (6) is fixedly connected to the positioning seat (1) in the vertical direction and the adjusting member (6) can rotate relative to the positioning seat (1).

3. The fixture for the oil cylinder joint according to claim 2, characterized in that: The bottom of the positioning seat (1) has a strip-shaped limiting groove (1b1) arranged along the front-back direction, the limiting groove (1b1) is a T-shaped groove, and the portion of the limiting groove (1b1) with a smaller groove width is located below the portion of the limiting groove (1b1) with a larger groove width. The adjusting member (6) has a rod body (6a), a limiting head (6b) fixedly connected to the upper end of the rod body (6a), and an operating head (6c) fixedly connected to the lower end of the rod body (6a), the outer diameters of the limiting head (6b) and the operating head (6c) are both larger than the rod body (6a), and the limiting head (6b) is located in the portion of the limiting groove (1b1) with a larger groove width.

4. The fixture for the oil cylinder joint according to claim 1, 2 or 3, characterized in that: The groove bottom wall of the groove (1a) is also fixedly connected with two positioning blocks (3), the positioning block (3) is located in front of the positioning block (2), the two positioning blocks (3) are arranged opposite to each other along the left and right sides, and the distance between the right side surface of the positioning block (3) located on the left and the left side surface of the positioning block (3) located on the right is greater than the distance between the right side surface of the positioning block (2) located on the left and the left side surface of the positioning block (2) located on the right.

5. The fixture for the oil cylinder joint according to claim 4, characterized in that: The abutment surface (2a) is an outwardly convex arc surface. The abutment surface (2a) of the positioning block 1 (2) on the left is in smooth transition with its right side surface, and the abutment surface (2a) of the positioning block 1 (2) on the right is in smooth transition with its left side surface.

6. The fixture for the oil cylinder joint according to claim 4, characterized in that: The positioning seat (1) comprises a U-shaped seat body (1b) and a square block body (1c); the block body (1c) is detachably connected to the seat body (1b); the left inner wall of the seat body (1b), the right inner wall of the seat body (1b) and the top surface of the block body (1c) form the above-mentioned groove (1a); the top surface of the seat body (1b) is higher than the top surface of the block body (1c); the positioning block 1 (2) and the positioning block 2 (3) are both fixedly connected to the top surface of the block body (1c).

7. The fixture for the oil cylinder joint according to claim 6, characterized in that: The seat body (1b) and the block body (1c) are fixedly connected by a plurality of fastening screws, the rods of some of the fastening screws pass through the seat body (1b) from the left side and are threadedly connected to the block body (1c), and the rods of the remaining fastening screws pass through the seat body (1b) from the right side and are threadedly connected to the block body (1c).

8. The fixture for the oil cylinder joint according to claim 7, characterized in that: The top of the block (1c) is provided with a straight give-away groove (1c1) along the front-to-back direction, the give-away groove (1c1) is located between the two positioning blocks (2), the groove width of the give-away groove (1c1) is smaller than the spacing between the two positioning blocks (2), the bottom of the block (1c) is provided with a straight give-away groove (1c1) along the front-to-back direction, the give-away groove (1c2) is located directly below the give-away groove (1c1) and the two have the same groove width, and the block (1c) between the give-away groove (1c1) and the give-away groove (1c2) is in a strip shape.

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