Clamp for part machining

Abstract

The utility model relates to the technical field of clamps, and discloses a part machining clamp which comprises an installation table, a clamping seat is installed on the installation table through an installation assembly, and an air cylinder is arranged on the clamping seat. T-shaped sliding grooves are oppositely formed in the upper side face of the mounting table, a sliding block is arranged on the lower side face of the clamping seat, and a mounting groove is formed in the upper side face, located between the two sliding grooves, of the mounting table; the mounting assembly comprises a mounting block arranged in the mounting groove, a mounting cavity with an opening in the upper end is formed in the mounting block, a telescopic locking piece is arranged in the mounting cavity, an inserting groove is formed in the lower side face of the clamping base, and the locking piece extends into the inserting groove to be used for achieving fixed mounting of the clamping base on the mounting table; a driving assembly is arranged in the clamping base, and a power assembly is further arranged in the mounting groove. Through the arrangement of the driving assembly, the driving assembly can drive the locking piece to be separated from the inserting groove and retract into the mounting cavity, that is, fixation of the clamping base on the mounting table is relieved, and replacement of the clamping base is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and more specifically, to a fixture for machining parts. Background Technology

[0002] Fixtures are required when machining parts by turning, grinding, drilling, etc. Fixtures play a vital role in machining, mainly used to position and clamp workpieces to ensure the stability and accuracy of workpieces during the machining process.

[0003] During the production process, parts are typically ground at both ends using a grinding machine. This double-end grinding ensures the parallelism of the two end faces of the parts, preventing assembly interference or system performance degradation due to errors. However, in actual use, parts come in both square and cylindrical shapes. Common fixtures cannot adequately hold and fix parts of both shapes. When it is necessary to fix a part of a different shape, the fixture must be changed from the grinding machine by tightening bolts or other fasteners to facilitate grinding of the other part. This makes the fixture change process cumbersome and requires improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a fixture for machining parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A jig for machining parts includes a mounting table on a grinding machine. A clamping seat is mounted on the mounting table via a mounting assembly, and a cylinder is mounted on the clamping seat. The upper side of the mounting table has T-shaped grooves along its length, and the lower side of the clamping seat has a slider that slides into the corresponding groove. A mounting groove is provided on the upper side of the mounting table between the two grooves. The mounting assembly includes a mounting block within the mounting groove, with an upper-opening mounting cavity. A retractable locking element is located within the mounting cavity. A insertion groove is provided on the lower side of the clamping seat, and the locking element extends into the insertion groove to secure the clamping seat on the mounting table. A driving assembly is provided within the clamping seat to retract the locking element into the mounting cavity, releasing the clamping seat from the mounting table. A power assembly is also provided within the mounting groove to drive the clamping seat to move.

[0007] Furthermore, the locking component includes a locking block disposed in the mounting cavity by a first spring. The first spring is used to push the locking block upward and extend it into the insertion groove. A baffle is provided on the outer side wall of the locking block to prevent the first spring from pushing the locking block out of the mounting cavity. A first inclined surface is provided at the upper end of the locking block.

[0008] Furthermore, the bottom wall of the clamp is provided with a notch for a through insertion slot, and the drive assembly includes a drive plate slidably disposed in the notch. The drive plate is provided with a drive rod extending through the front side of the clamp, and the two side walls of the drive plate are provided with a second inclined surface and a third inclined surface, the second inclined surface being used to cooperate with the first inclined surface.

[0009] Furthermore, a fixing plate is provided at the end of the extended end of the drive rod, and a positioning bolt is provided on the fixing plate.

[0010] Furthermore, the mounting groove and the sliding groove are arranged in parallel. The power assembly includes a connecting block on the lower side of the mounting block. The power assembly also includes a threaded rod that is rotatably disposed in the mounting groove. The threaded rod is threaded through the connecting block, and one end of the threaded rod extends through the mounting groove. A friction element is provided on its extended end.

[0011] Furthermore, the portion of the threaded rod extending out of the mounting groove forms an extension, and the extension has a cavity. The outer wall of the extension has a slot communicating with the cavity. The friction component includes a first limiting plate fixedly mounted on the front side wall of the mounting platform, a second limiting plate slidably mounted on the outer wall of the extension, a rotating shaft in the cavity, a connecting plate extending out of the slot and fixedly connected to the inner side wall of the second limiting plate on the outer wall of the rotating shaft, an annular plate on the outer wall of the extension, and a second spring sleeved on the extension of the second limiting plate and the annular plate. The second spring is used to push the second limiting plate to engage with the first limiting plate.

[0012] Furthermore, the other end of the rotating shaft extends through the cavity, and a hand crank is provided at the end of the extended end.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of the drive component, enables the drive component to drive the locking member to disengage from the insertion slot and retract into the mounting cavity, that is, to release the clamp from the mounting table, so that the operator can slide the clamp out along the slide groove for replacement.

[0015] This utility model, through the setting of the locking member, allows the locking member to move upward and extend into the insertion groove, thereby preventing the clamp from sliding in the front-to-back direction on the mounting table. Since the slider is also T-shaped, the clamp cannot move in the up-and-down direction on the mounting table, thus allowing the clamp to be fixedly installed on the mounting table. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a jig for machining parts according to the present invention.

[0017] Figure 2 This is a schematic diagram of the mounting platform in this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the mounting platform in this utility model.

[0019] Figure 4 This is an exploded structural diagram of the friction component in this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the lower side of the clamp in this utility model.

[0021] Figure 6 This is a cross-sectional structural diagram of the clamp in this utility model.

[0022] Figure 7 This is a cross-sectional structural diagram of the locking component in this utility model.

[0023] Figure 8 This is a cross-sectional structural diagram of the drive component in this utility model.

[0024] Figure 9 This is a schematic diagram of the structure of the locking component retracting into the mounting cavity in this utility model.

[0025] Figure 10 This is a schematic diagram of the cylinder position on the clamping seat in this utility model.

[0026] The meanings of the labels in the diagram are as follows: 100, grinding machine; 101, mounting table; 102, clamp; 103, cylinder; 105, mounting groove; 106, slide groove; 107, first limit plate; 108, second limit plate; 109, hand crank; 110, second spring;

[0027] 200. Mounting block; 201. Threaded rod; 202. Locking block; 203. Connecting block;

[0028] 300. Mounting cavity; 301. Baffle; 302. First spring; 303. Cavity; 304. Rotating shaft; 305. Annular plate;

[0029] 400, slot; 401, connecting plate;

[0030] 500, slider; 501, drive rod; 502, insertion slot; 503, notch;

[0031] 602. Positioning bolt; 603. Fixing plate; 604. Drive plate. Detailed Implementation

[0032] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0033] The following is in conjunction with the appendix Figures 1-10 This embodiment will be described in further detail.

[0034] Combination Figures 1-10 As shown, a jig for machining parts in this embodiment includes a mounting table 101 mounted on a grinding machine 100. A clamping seat 102 is mounted on the mounting table 101 via a mounting assembly. A cylinder 103 is provided on the clamping seat 102. T-shaped sliding grooves 106 are provided on the upper side of the mounting table 101 along its length direction. A slider 500 that extends into the corresponding sliding groove 106 is provided on the lower side of the clamping seat 102. A mounting groove 105 is provided on the mounting table 101 located between the two sliding grooves 106.

[0035] The mounting assembly includes a mounting block 200 disposed in a mounting groove 105, a mounting cavity 300 with an upper opening in the mounting block 200, a retractable locking member disposed in the mounting cavity 300, and a insertion groove 502 disposed on the lower side of the clamp 102, the locking member extending into the insertion groove 502 to achieve fixed installation of the clamp 102 on the mounting table 101.

[0036] The clamp 102 is provided with a drive assembly, which is used to drive the locking member to retract into the mounting cavity 300. The mounting groove 105 is also provided with a power assembly for driving the clamp 102 to move.

[0037] In practical use, the clamp 102 is fixedly connected to the mounting platform 101 via the mounting assembly, and the square columnar component or cylindrical component is fixed to the clamp 102 via the cylinder 103.

[0038] Specifically, when it is necessary to fix a square columnar component, four cylinders 103 are used. These four cylinders 103 are located at the front, rear, left, and right sides of the clamp 102, respectively, allowing the cylinders 103 to abut against the corresponding sides of the square columnar component, thus ensuring optimal fixation of the component on the clamp 102. When it is necessary to fix a cylindrical component (in conjunction with...), Figure 10 As shown), at this time, there are three cylinders 103. The three cylinders 103 are evenly distributed along the circumference of the cylindrical part, so that the three cylinders 103 can abut against the outer wall of the cylindrical part, thereby making the cylindrical part better fixed on the clamp 102.

[0039] Specifically, the grinding machine 100 has an existing structure. The grinding machine 100 is equipped with a grinding assembly, which mainly consists of a hydraulic cylinder and a rotatable grinding head. The parts are fixed on the clamp 102, and the clamp 102 is moved to a suitable position. At this time, the hydraulic cylinder drives the grinding head to move down, so that the end face of the parts can be ground.

[0040] In actual use, the sliding groove 106 has an opening at the front end. When the clamp 102 needs to be installed, the slider 500 on the clamp 102 is aligned with the opening of the corresponding sliding groove 106 on the mounting platform 101 and slid into the sliding groove 106, so that the clamp 102 can slide on the upper side of the mounting platform 101. When the insertion groove 502 on the lower side of the clamp 102 is aligned with the upper opening of the mounting cavity 300, the locking member moves up and extends into the insertion groove 502, thereby preventing the clamp 102 from sliding in the front-back direction on the mounting platform 101. Since the slider 500 is also T-shaped, the clamp 102 cannot move in the up-down direction on the mounting platform 101, so that the clamp 102 can be fixedly installed on the mounting platform 101.

[0041] Specifically, the slide groove 106 is adapted to the slider 500, so that the side wall of the slider 500 can slide against the corresponding side wall of the slide groove 106, thereby making the slider 500 less likely to shake in the slide groove 106, and thus making the clamp 102 less likely to shake on the mounting table 101.

[0042] When it is necessary to grind different positions at the end of a component, the power component is set so that it can drive the mounting component to move, which in turn drives the clamp 102 to move on the mounting table 101. This allows the clamp 102 to move the component, so that the grinding head can grind different positions at the end of the component.

[0043] When the clamp 102 needs to be replaced, the drive component is configured to drive the locking member to disengage from the insertion slot 502 and retract into the mounting cavity 300, thereby releasing the clamp 102 from the mounting table 101. This allows the operator to slide the clamp 102 out along the slide groove 106 for replacement.

[0044] Combination Figures 2-5 As shown, in this embodiment, the locking member includes a locking block 202 disposed in the mounting cavity 300 by a first spring 302. The first spring 302 is used to push the locking block 202 upward and extend it into the insertion groove 502. A baffle 301 is provided on the outer side wall of the locking block 202. The baffle 301 is used to prevent the first spring 302 from pushing the locking block 202 out of the mounting cavity 300. A first inclined surface is provided at the upper end of the locking block 202.

[0045] In actual use, the upper end of the mounting cavity 300 is open, and a blocking ring is provided at the opening. Under the action of the first spring 302, the locking block 202 extends through the blocking ring, thereby facilitating the installation of the locking member in the mounting cavity 300.

[0046] The baffle 301 is fixedly installed on the outer wall of the locking block 202 and can slide and fit against the inner wall of the mounting cavity 300. The upper end of the first spring 302 abuts against the baffle 301 and the lower end abuts against the bottom wall of the mounting cavity 300, so that the baffle 301 abuts against the blocking ring, and the locking block 202 extends through the blocking ring.

[0047] In actual use, due to the setting of the first inclined surface, when the clamp 102 slides against the first inclined surface on the upper side of the mounting platform 101, the clamp 102 continues to slide, so that the side wall of the clamp 102 can slide and squeeze the first inclined surface, so that the first inclined surface can drive the locking block 202 to move down and compress the first spring 302, thereby allowing the locking block 202 to retract into the mounting cavity 300 and abut against the lower side of the clamp 102. When the clamp 102 slides so that the insertion groove 502 is aligned with the upper opening of the mounting cavity 300, at this time, under the action of the first spring 302, the first spring 302 can push the locking block 202 to move up and extend into the insertion groove 502, thereby fixing the clamp 102.

[0048] Among them, the locking block 202 is adapted to the insertion groove 502, so that the side wall of the locking block 202 can slide against the corresponding side wall of the insertion groove 502, thereby making the gap between the locking block 202 and the insertion groove 502 smaller, so that the shaking of the locking block 202 in the insertion groove 502 will not affect the fixation of the clamp 102 on the mounting table 101.

[0049] Combination Figures 5-9 As shown, in this embodiment, the bottom wall of the clamp 102 is provided with a notch 503 that penetrates the insertion groove 502. The driving assembly includes a driving plate 604 that is slidably disposed in the notch 503. The driving plate 604 is provided with a driving rod 501 that extends through the front side of the clamp 102. The two side walls of the driving plate 604 are provided with a second inclined surface and a third inclined surface. The second inclined surface is used to cooperate with the first inclined surface.

[0050] In actual use, in the initial state, when the locking block 202 extends into the insertion slot 502, (as shown in the example) Figure 7 As shown), at this time, the first inclined surface and the second inclined surface are in contact; in order to maintain the state of the first inclined surface and the second inclined surface in contact, a fixing plate 603 is provided at the end of the extended end of the drive rod 501, and a positioning bolt 602 is provided on the fixing plate 603. Tightening the positioning bolt 602 allows one end of the positioning bolt 602 to abut against the front side wall of the clamp 102. At this time, the drive rod 501 cannot be pushed inward.

[0051] When it is necessary to release the clamp 102 from the mounting platform 101 (such as...) Figure 8(As shown), tighten the positioning bolt 602 so that one end of the positioning bolt 602 is flush with the corresponding side wall of the fixing plate 603. At this time, the drive rod 501 can be pushed inward. Pushing the drive rod 501 inward will cause the drive rod 501 to move the drive plate 604, so that the drive rod 501 can drive the second inclined surface to slide and press the first inclined surface, so that the first inclined surface can drive the locking block 202 to move downward. When one end of the drive rod 501 is inserted into the clamp 102 located on the other side of the insertion slot 502, the first inclined surface and the second inclined surface are misaligned; (as shown) Figure 9 As shown), at this time, the locking block 202 moves upward under the action of the first spring 302, so that the upper end of the locking block 202 can abut against the third inclined surface; the drive rod 501 is pulled outward, so that the drive rod 501 can drive the drive plate 604 to move outward, so that the third inclined surface can drive the locking block 202 to move downward and retract into the mounting cavity 300. Continue to pull the drive rod 501 outward, when the third inclined surface is misaligned with the upper end of the locking block 202, at this time, the upper end of the locking block 202 abuts against the lower end of the drive plate 604. At this time, the locking block 202 is located in the mounting cavity 300. Continue to pull the drive rod 501 outward, so that the locking block 202 can be misaligned with the insertion slot 502; thereby releasing the installation of the clamp 102 on the mounting platform 101;

[0052] The notch 503 is provided along the moving direction of the drive rod 501 and passes through the insertion slot 502. The notch 503 allows the drive plate 604 to slide within the clamp 102 and the insertion slot 502.

[0053] Combination Figures 3-4 As shown, in this embodiment, the mounting groove 105 and the sliding groove 106 are arranged in parallel; the power component includes a connecting block 203 disposed on the lower side of the mounting block 200, and the power component also includes a threaded rod 201 rotatably disposed in the mounting groove 105. The threaded rod 201 is threaded through the connecting block 203, and one end of the threaded rod 201 extends through the mounting groove 105 and is provided with a friction element on its extended end.

[0054] In actual use, the connecting block 203 is fixedly installed on the lower side of the mounting block 200. The mounting groove 105 is adapted to the connecting block 203, so that the side wall of the connecting block 203 can slide against the corresponding side wall of the mounting groove 105, so that the mounting groove 105 can limit the connecting block 203 and prevent the connecting block 203 from shaking in the mounting groove 105. By rotating the threaded rod 201, the rotation of the threaded rod 201 can drive the connecting block 203 to move, thereby enabling the connecting block 203 to drive the mounting block 200 to move, which in turn enables the mounting block 200 to drive the locking block 202 to move the clamp 102.

[0055] In actual use, the friction component is designed to limit the threaded rod 201, thereby better preventing the grinding assembly from vibrating during grinding of parts and causing the threaded rod 201 to rotate erroneously.

[0056] Both ends of the threaded rod 201 are rotatably mounted on the corresponding side wall of the mounting groove 105 via bearings, thereby enabling the threaded rod 201 to be rotatably mounted within the mounting groove 105.

[0057] Combination Figures 2-4 As shown, in this embodiment, the portion of the threaded rod 201 extending out of the mounting groove 105 forms an extension, and a cavity 303 is provided inside the extension. A slot 400 communicating with the cavity 303 is provided on the outer side wall of the extension. The friction element includes a first limiting plate 107 fixedly mounted on the front side wall of the mounting platform 101, a second limiting plate 108 slidably mounted on the outer side wall of the extension, a rotating shaft 304 provided inside the cavity 303, a connecting plate 401 extending out of the slot 400 and fixedly connected to the inner side wall of the second limiting plate 108 on the outer side wall of the rotating shaft 304, and an annular plate 305 also provided on the outer side wall of the extension. A second spring 110 is sleeved on the extension of the second limiting plate 108 and the annular plate 305. The second spring 110 is used to push the second limiting plate 108 to fit against the first limiting plate 107.

[0058] In this embodiment, the other end of the rotating shaft 304 extends through the cavity 303, and a hand crank 109 is provided at the end of the extended end.

[0059] In actual use, rubber pads are provided on the opposite side walls of the first limiting plate 107 and the second limiting plate 108 in this embodiment. By setting the rubber pads, the friction between the first limiting plate 107 and the second limiting plate 108 can be increased.

[0060] In actual use, one end of the second spring 110 abuts against the side wall of the second limiting plate 108, and the other end abuts against the annular plate 305, so that the second spring 110 can push the second limiting plate 108 to drive the connecting plate 401 to slide along the slot 400, so that the second limiting plate 108 can be tightly attached to the side wall of the first limiting plate 107. Since the first limiting plate 107 is fixedly installed on the front side wall of the mounting platform 101, the first limiting plate 107 can limit the second limiting plate 108, thereby making it difficult for the threaded rod 201 to rotate.

[0061] When it is necessary to drive the threaded rod 201 to rotate, the hand crank 109 pulls the rotating shaft 304 outward, so that the rotating shaft 304 can drive the connecting plate 401 to drive the second limiting plate 108 to disengage from the side wall corresponding to the first limiting plate 107. At this time, the hand crank 109 is rotated, so that the hand crank 109 can drive the rotating shaft 304 to rotate, thereby enabling the rotating shaft 304 to drive the threaded rod 201 to rotate through the connecting plate 401.

[0062] In practical use, the slider 500 on the clamp 102 is aligned with the opening of the groove 106 on the mounting platform 101 and slid into the groove 106, allowing the clamp 102 to slide on the upper side of the mounting platform 101. When the clamp 102 slides and abuts against the first inclined surface on the upper side of the mounting platform 101, the clamp 102 continues to slide, causing the side wall of the clamp 102 to press against the first inclined surface. This causes the first inclined surface to drive the locking block 202 to move downward and compress the first spring 302, thereby allowing the locking block 202 to retract into the mounting cavity 300. When the clamp 102 slides so that the insertion groove 502 is aligned with the upper opening of the mounting cavity 300, the first spring 302 pushes the locking block 202 upward and into the insertion groove 502, thus fixing the clamp 102.

[0063] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A fixture for machining parts, comprising a mounting table arranged on a grinding machine, a clamping seat being mounted on the mounting table through a mounting assembly, and a pneumatic cylinder being arranged on the clamping seat; characterized in that: The upper side of the installation table is oppositely provided with T-shaped sliding grooves along the length direction, the lower side of the clamping base is provided with sliding blocks sliding into the corresponding sliding grooves, and the installation table between the two sliding grooves is provided with an installation groove; the installation assembly comprises an installation block arranged in the installation groove, an installation cavity with an open upper end is arranged in the installation block, a lock piece arranged to be retractable is arranged in the installation cavity, an insertion groove is arranged on the lower side of the clamping base, and the lock piece extends into the insertion groove to achieve the fixed installation of the clamping base on the installation table; the clamping base is provided with a driving assembly, the driving assembly is used to drive the lock piece to retract into the installation cavity, and the installation groove is further provided with a power assembly used to drive the clamping base to move.

2. The jig for machining a component according to claim 1, characterized by: The lock piece comprises a lock block arranged in the installation cavity through a first spring, the first spring is used to push the lock block to move upwards and extend into the insertion groove, a baffle is arranged on the outer side wall of the lock block, the baffle is used to prevent the first spring from pushing the lock block out of the installation cavity, and a first inclined surface is arranged at the upper end of the lock block.

3. The jig for machining a component according to claim 2, characterized in that: The bottom wall of the clamping base is provided with an aperture penetrating the insertion groove, the driving assembly comprises a driving plate slidingly arranged in the aperture, the driving plate is provided with a driving rod extending out of the front side of the clamping base, the two side walls of the driving plate are provided with a second inclined surface and a third inclined surface, and the second inclined surface is used to cooperate with the first inclined surface.

4. The jig for machining a component according to claim 3, characterized in that: The end of the driving rod is provided with a fixing plate, and the fixing plate is provided with a positioning bolt.

5. The fixture of claim 1 wherein: The installation groove is arranged in parallel with the sliding groove, the power assembly comprises a connecting block arranged on the lower side of the installation block, the power assembly further comprises a threaded rod rotatably arranged in the installation groove, the threaded rod is threadedly arranged through the connecting block, one end of the threaded rod extends out of the installation groove, and a friction piece is arranged on the extending end of the threaded rod.

6. The jig for processing a component according to claim 5, wherein: The part of the threaded rod extending out of the installation groove forms an extending portion, a cavity is arranged in the extending portion, and a slot communicating with the cavity is oppositely arranged on the outer side wall of the extending portion; the friction piece comprises a first limiting disc fixedly arranged on the front side wall of the installation table, a second limiting disc is slidingly arranged on the outer side wall of the extending portion, a rotating shaft is arranged in the cavity, the outer side wall of the rotating shaft is provided with a connecting plate extending out of the slot and fixedly connected to the inner side wall of the second limiting disc, and an annular plate is further arranged on the outer side wall of the extending portion, a second spring is arranged on the extending portion between the second limiting disc and the annular plate, and the second spring is used to push the second limiting disc to abut against the first limiting disc.

7. The jig for processing a component according to claim 6, wherein: The other end of the rotating shaft extends out of the cavity, and a hand wheel is arranged at the end of the extending end of the rotating shaft.

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